My best friends has 2 kids and both the kids didn't roll and completely skipped it and when on sit and crawl etc and they both grow up perfect...I wouldn't be too worry about it especially you know your lo can do it. You can always check with your hv for reassurance. xx
My boy doesn’t roll yet too
My boy is 7 month in 9 days and has only ever rolled on his own once and that was on the bed x
Exact same for us! Worries me too