If I go out wheeling and tag/tap a tree then it's not so bad. But blatantly saying your going out and hitting trees is not wheeling.
A guy on another board made tube flares for his truck and claims its for when he is on the trails, the trees will bounce off. If your going down trails where your hitting trees, #1 Your too wide and not following the proper trails. #2 Not caring about trail etiquit and mowing down anything you see and blazing new trails just for the sake of it.
Any good wheeler will tell you they never hit trees rather the trees move when your not looking and hit you.