My personal bias is no. I have never met your children , but my observation of my neighbors generally well behaved children is that Kids will take it off the designated path, and Kids will take it on a public road.
I used to put 50,000 miles a year on my vehicle. ....mostly on interstate. It doesn't take too much of an imagination to consider putting a donut on a car and then letting ones mind wander about the need for a repair.