does she have postpartum depression? i mean, not to defend her lazy parenting but maybe thats why she smokes weed. or she could just be a complete dumbass and im sorry for insulting her but thats my take on it.
and no, 7 months is not too early. by 7 months that little girl should be able to follow your face, react to voices, blabber, smile, drool, touch, raise her hands when she wants to be carried, be able to crawl, start eating pureed foods, hell...even starting to pull herself up on furniture!....etc. well, thats what my son was doing when he was 7 months old.
i just dont understand it when people dont take on the full responsibility of being a parent. or just simply dont care of the well being of their offspring.