W.M.
It depends on his age if it is going to deter him from crawling, etc but no matter what the age, why is the child in the crib so long?? How do they feed it? Is the baby crying and wanting to get out b/c that can't be healthy for it either. I guess if they don't have a basinette, they can use the crib but that is only for the first 2-3 months. If the baby is at least 4 months old it would need practice on his tummy and holding his own head up. The baby needs to exercise more....if you are close to this family I would consider buying it an exersaucer or bouncer as a gift to get it out. If you are not close and you feel this is abusive...call the local DHS on them! Awful and lazy of those parents!