I think he acts like that because when the curse appeared he was still a child and everyone even his parents left him so he grow-up to fast so....... hes just goin back to what he was like before (=・ω・=)
Same I think he will mature quickly
I think he acts that way because the cursed stunt his growth and he hardly ever got attention from anyone.
Yh it throws me off wen I realise hes 13 but it's like I'm glad the age gap isnt hugemongous
Three years gap is totally normal but it's awkward to see when their still young lol
He looks like he's 8
But I think that cuzbof the curse
I think he acts a little too childish for 13 but it's cute
I just have to remember They are only 3 years apart and it's all good