My mother is driving me round the twist. DS is 21 months, points a bit, probably has about 20 words, seems generally a happy kid. My mother is constantly on at me that she is concerned about his language development, keeps asking me (sometimes on a daily basis!!) whether he has had any new words, and now says that by this age she would expect him to have several new words per day. Any advice as to how to politely tell her that language acquisition isn't a race????????