Crawling does help strengthen early upper body muscles but it is not an essential part of early development. I have seen several children in my career that have gone straight to walking without crawling at all. This will cause no detriment to a child's overall development.
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I walked without crawling
I walked without crawling when I was a kid and I think my daughter is on the same track...
Crawling does help strengthen
Crawling does help strengthen early upper body muscles but it is not an essential part of early development. I have seen several children in my career that have gone straight to walking without crawling at all. This will cause no detriment to a child's overall development.