I don't see anything wrong kung may delay sa development nung bata sa ngayon, pwede yun mabago dahil sobrang bata pa nya. Bulol yung sister ko hanggang 6 y.o, very slow to comprehend nung elem sya, wets her bed until she was lower elem, but grumaduate ng CUM LAUDE ng college,received one of the highest award in the University she attended, her research group was recognized in an international research competition about Children with Special Needs. She is now a teacher in an International School sa Japan trained by an Oxford Graduate. You don't know the future of the child your mocking. I think you should be more concerned sa sarili mo, because the way you mock the child is hindi gawain ng mabuti at mature na ninang at magiging nanay.
The parents would've been VERY DISAPPOINTED to have you as their child's godparent kung malaman nila how you see and make fun of their child. I hope you change before you become a parent.
It's more weird for someone, a woman, especially a MOTHER to not feel compassion and be of help sa batang kailangan ng guidance.
You help the child instead of humiliating the child here. If not, help your self to keep your mouth shut if you have nothing good to say.
Magbasa pa