LO is over 5 months hold and still has not rolled over for us. She does great with tummy time (or I should say, is getting much better with it) and loves to spend time on her back. We've tried putting things out of reach that she wants, helping her to get a certain point and then letting her roll after that, and praising her when we roll her over but honestly, she has zero interest. She loves to sit up and does really well with it, although is still working on her balance there. I'm wondering if my baby will never roll over and just go straight to crawling. lol. How old was your LO when they started rolling over on purpose?