Is it crucial for baby to have "tummy time"!? My baby still doesn't enjoy it, and shows no interest in rolling or moving. He has good head control already and reaches for things! I wouldn't really mind if he skipped the crawling because SOs dog hair is never ending and I can't stand it when I see it, so I would probably be a nut ball if he crawls and was eating dog hair! Loll. Anyway I was just curious if anyone else's LO is similar...