I just said that minsc is also a childish character, in regards to the comment above mine.
He is childish, as if has characteristics of a child. He is not childish, as if "seems to be written by a child".
It might be humor thing. I find Larian games painfully unfunny. I find comments above about BG3 writing needing less humor confusing, as I spotted little humor in BG3. On the other hand Minsc makes me chuckle, even nowadays. Minsc is a daft character, Astarion seems to be written daftly - unless he is supposed to be incompetent, annoying little shit.
He is a childish character written by an adult. You could say the same about Astarion. If you think there is a problem with the quality of his writing that's fine. But don't say childish characters are a problem.
