My child is almost 7 months old and still can't roll over. What should I do?

Patient's question:

My child is almost 7 months old and still hasn't learned to roll over. Is there something wrong with him? However, I've noticed that he's completely normal in other aspects, such as his good spirits and his ability to use the walker smoothly. By the way, could it be related to him starting to sit in the walker early? He started sitting in the walker when he was about 4 and a half months old. I'm looking forward to everyone's advice. A anxious mother

Doctor's answer:

Seven months without rolling over is a normal phenomenon. Children grow at different paces, and their growth rates vary depending on their abilities. Your child should be stronger in some aspects compared to other children.
Secondly, it's best to avoid or minimize the use of walkers. Humans learned to walk just fine before the invention of walkers, and using such devices may actually hinder the development of a child's own potential.