I am all for parents helping their kids out as much as possible, there should be more off it. I kids aren't allowed to skin their knees and get dirt under their finger nails they will never learn.
I think back to when I got my driver's license and when my kids got their driver's license and I can say quiet comfortably, I had it very easy and very cheap, might I add. But either way, kids learning to drive a vehicle on private property, to learning to drive for the first time on the road, they both have to learn to drive with other traffic and really that is a skill that unfortunately some people just have trouble learning or getting used to. Some get it, some don't.