Baby milestones...lazy baby lol

Li

Ok plz tell me I'm not the only one who's baby is kind of lazy lol. My daughter is 6m and just doesn't care to roll at all. She can sit and likes being in her jumper but not rolling at all. I see all these 6m old holding themselves up and some even crawling! Like is my daughter behind?? Ugh I hate feeling like maybe I'm failing to teach her ....