Hi carynr
I know you can not say to a new mom don't worry but don't Every child is different,All it is that some kids learn quickly than other kids i know you don't
but don't get angry with him make it a game and reward him when he does it himself.

If you are concerned go and see your doctor get him to refer you to see some one just put your mind at rest.

An as far the bottle go's our mark will kill me for saying this lol he was drinking out of the same bottle until he was 3 he only stopped when we went on holiday and we forgot to take it with us.

To your parenting journey,
Joe Pickering