My baby can't crawl either and doesnt really roll either. Apparently its normal and a lot of them skip crawling all together and bum shuffle instead. I wouldn't worry 😊
Some babies skip crawling and go straight to walking. If the health visitor isn’t worried I would say it’s ok
No crawler here either! Although she’s very eager to get around and loves to stand (whilst being held/holding onto things) so maybe she will just walk instead 🤷🏻♀️
Your not the only one my little girl only just started going from laying down to sitting and she don’t have no strength at all yet in her legs to pull her self up