We have a 4 year old who refuses to speak french with daddy, mainly because dh hasn't bothered to speak french very much with dd since birth, citing tiredness and general can't be botheredness, and now when I remind him, he rattles off french at her way too fast and she can't understand! He's basically cutting off access to his side of the family, which is already emerging when we visit them, with dd talking only to me or him in english,and it looks like its going to be the same story with 5 month old ds. Any advice?