I'm not going help my son cross the street
Why are you letting him by yourself?
I think he needs to learn how to be independent
It is important to help your child become more independent, but crossing the street alone is very dangerous. There are a lot of bad things that could happen which would make you very sad.
As long as he doesn't get hit by a car then I'm fine.
Well, yeah. Make sure that he knows to look both ways before crossing and all of the proper precautions to take, and then everything should be fine. It can be good to be a bit more independent.