My daughter is doing physiotherapy She isn't walking unassisted yet Physiotherapist saw shes got the strength just hasn't got the confidence yet she furniture cruising, using her walker just not 100% confident to do steps alone Is that maybe what is happening with your son like he is scared ?
He doesn’t seem to be scared cause he will take steps and keep going till he falls over but then he’ll just crawl, he will not get back up and when I stand him up he squeals and drops his legs
You could look into having him do some physical therapy! My cousins boy was in the same boat and he’s been doing therapy and it’s really been helping!