Eli5: Why do babies instinctively raise their feet when held over grass?

Question

Eli5: Why do babies instinctively raise their feet when held over grass?

In: 6

Answer 1

I’ve seen explanations ranging from it just being a new sensation they’re apprehensive about, to things like that it might be an innate reflex to avoid allergens, dangerous plants, or hidden animals that could hurt them.

However, I’ll add that *none* of the articles I’ve seen addressed what seems to be a pretty big issue to me, and that is that none of what I’ve seen has been babies being held over grass. They’re babies being held over grass *that’s sharpened weekly*.