I've seen people say things about Amalia not being queen material because she was always far from her kingdom, and I can't help but think they're taking everything at face value. Like they assume that just because the plot takes place while Amalia is usually away on an adventure, that's all there is to it and her circumstances, when in reality nothing is further from the truth.
First of all, back in season 1 the show didn't exactly shy away from confirming Amalia essentially spent her early life confined in the Sadida Kingdom and most likely never stepped foot outside of it until she decided to run away. Hence why she failed to understand the chamberlain wouldn't be able to pay for her expenses when she was in Bonta.
And why did she run away in the first place? That's right. Because her family insisted she remained cooped up in the palace ever since the queen's death. And considering Queen Sheran Sharm died when Amalia was little, that all means she had spent 13 years "trapped" in her kingdom as early as season 1.
Now, I don't think we have an exact date for the Brotherhood's adventures, how long they lasted. But I'm gonna go with my gut and say each journey they took place in the span of several months to a year, tops.
That would mean the first time Amalia left home she wasn't away for that long, anyway.
Not to mention, after dealing with Nox and before Eva herself ran away to get Pinpin back in season 2, it was established the Brotherhood of the Tofu spent several weeks, maybe a month or two, in the Sadida Kingdom. With Yugo and Adamaï helping Amalia with her duties because she was swamped with them, to the point she somewhat reverted back to her brattier days (which is not excusable, but it does show that, at 13-14 at the least, Amalia was already in charge of many administrative duties and responsibilities and under a lot of stress).
In fact, the only reason she didn't stay in her kingdom for the entirety of the season, besides her wanderlust, is the fact that trouble kept popping up. Originally, they only left to get Eva back after she ran away in search of Pinpin, and once they returned from that, the only reason they left the kingdom again was because of Qilby's appearance and his lies deceiving them into helping retrieve his Dofus by painting it as a humanitarian mission for the sake of the Eliatropes.
And before you point out Amalia was supposed to stay in her kingdom that time around but chose to run away again, let's not forget how, technically speaking, she didn't sneak away at all, shall we?
In season 2, the roles had been reversed. Amalia thought she was sneaking away again, but not only was Eva in the know and totally in favour of it (as opposed to her reluctance from season 1), but so was King Sheran Sharm. Remember? He went as far as to have Renate and Canar prepare plenty of provisions for her. Meaning, that time around, Amalia had her father's approval, which implies she didn't actually do anything wrong.
And again, their adventures kept them away from several months up to a year, but not much longer. In fact, the only time it was confirmed they spent a year away was during the post-season 2 manga, and that was an accident because they didn't account for time flowing differently in Emrub.
Now, let's add the time of the OVAs. The special episodes are stated to take place 6 years after season 2, with Flopin and Élely being little kids but not babies or toddlers anymore; Yugo stuck in his childish body despite being, what, 19(?); and Amalia being old enough to marry—given she is 22 in seasons 3 and 4, that would make her roughly 20-21 years old.
Six years had gone by between the second season and the OVAs, and if we add the year away from the manga, that means that Amalia dutifully spent 5 years in her kingdom, carrying out her royal duties and most likely only leaving for a few days at a time at most in order to visit her friends for important occasions like their birthdays. Though this is speculation on my part based on the events of the manga. Days she got to spend away because she probably had her father's permission to, as he wholeheartedly approved of her friendship with the Brotherhood of the Tofu. Meaning, once again, that Amalia wasn't doing anything wrong.
Then the OVAs came, and she had to leave for Frigost, and this time indefinitely since she was to marry Count Harebourg, therefore becoming his Countess and needing to remain by his side in his realm. And, again, because that was a marriage of convenience for the sake of her kingdom, she wasn't just allowed to leave but expected to. But even when it was revealed Count Harebourg planned to either exploit Yugo and the Eliatrope Dofus or the Sadida forests to benefit Frigost and the wedding didn't come to pass, it wasn't like Amalia stayed around to sightsee either.
As soon as they freed Joris, Atcham, and Kerubim and got some exposition on Tristepin from Rubi, realising she had the means to save her kingdom by having Pinpin help, the group split up in two and they turned back around towards the Sadida Kingdom. And all that in just a few days, a week or two at most.
Then comes season 3, taking place a year, year and a half, after the OVAs, with Amalia now 22 and confining herself to the palace more than ever because she's watching as her father withers away each passing day and she's trying to avoid Armand and Aurora since all they seem to care about is getting her hitched and out of their hair.
To be honest, I'm not sure how long they're supposed to have spent in Oropo's dimension and Inglorium, since it feels like only a few days, but then Armand reveals in season 4 that he had only been king for a few weeks and the timeline gets kinda wacky. Because... Amalia just returned the day prior? And she spent the whole time by their father's grave?? What, did he leave her be to the point of risking malnourishment and dehydration for several days??? It just doesn't make sense.
Anyway, confusing timeline aside, what does this tell us? Simple, it tells us that Amalia was only away from home for about 2-3 years, which isn't all that different from when our parents send us to study abroad in real life. Which, at the same time, means that out of 22 years of her life, she remained 19 in her kingdom, performing her duties. And that's even without taking into account the fact that 90% of season 4 took place in the Sadida Kingdom, or the four months between Yugo and Amalia's wedding and the events of The Great Wave, where Amalia (and Yugo) stayed in her kingdom, ruling it.
Unlike Armand, Amalia might have been more interested in adventure than power and politics, and she might not have had the same kind of training as he did as heir apparent, but she is in now way, shape, or form incompetent or unprepared when it comes to ruling her people. Now try to tell me she was always away or that she is irresponsible. I dare you.