Depends on where you live. My area has an extensive network of "Jeep roads". The proliferation of ATVS and UTVS has become an issue more in recent years that ever before. There are tens of thousands of those buzz bombs ripping around the forest here, all summer long. It is huge business too, rentals, repairs etc.
In 2005 there were almost none and I was fighting the sled issue.
I again ask the question: Are there TOO many outdoor recreationists competing for the use of available public land?