my baby is 9 months 21 days but she is not crawling but rolling and moving around .is thr any issue

A. Some babies just never crawl and that's totally normal. They can go from sitting to scooting, to cruising and straight on to walking. ... Although developmental milestones can feel quite urgent sometimes, there is actually about three months give or take either side, a crawling age of 9-months is just the average.