Well my son is 13months, and at 11 months he was trying to whistle (upon being encouraged) and he finally learnt but then stopped, and no longer does it.
This has happened about a few things and I was wondering if they just dont bother after they have achieved that to add to part of their developmental learning or what?? (Like I've learnt that now I'm over it, teach me something new.....)
He is a very healthy smart little boy, but certain things he just wont do...not too concerned just wondering if anyone elses children have done this??
It use to be sooo cute to see him trying to whistle, and although he is still cute, wish he still done stuff like that, that he was taught to do...IYKWIM