I didn't watch Violet Evergarden, because the artstyle was so off putting to me, lol.
Babyface exists, but it doesn't look like an actual baby, come on.
Anyway, age is an explanation for Frieren's attitude, not an excuse. The dwarf also lives long, she could be nicer with him. Or live with other elves. It's just exhausting watching her be 'whatever'. Hopefully something more pressuring happens soon.
First one that egregious.