What I did next was replace the 1/4 inch fiberglass pole the reflectors come on with a 1 inch solid steel pole. It looks almost like the other reflectors only on a thicker pole.
So instead of a driver in a car getting hurt, now it will be a child riding a bike that might not see the 1" pole and get hurt?
The kids on bikes aren't the cause of your issue but yet they may be the one getting hurt.
If there is a big boulder, chances are it will be seen much more than a pole in the ground.
Again, just my