My LO jus started walking independently (but still a bit wobbly) at 15+ months.. my mil said he is slow .. I mean , 15 months started walking independently really is considered slow ?

being able to walk at 15mo is already good! No babies are able to walk stable immediately. Even for my son who is turning 2, he still stumbles over his own feet while walking.

no. dun worry. i have friend start at 16mo. or wad