Bus driving helped put me thru college.
We were told “What ever you do, DON’T touch a kid”
I was spit in the face, given the finger all sorts of stuff.
That's the universal rule in all states, you have absolutely NO protection whatsoever.
If you interfere, the best you can hope for is pauperization and unemployability for decades. The worst is several years in prison as a felon in addition.