Then feel free to go to your mechanic. No need for government to force you.
I’ve did most of necesary work on my own cars for about 50 years. I have the computer readers that can pick up many problems. The problem is the newer vehicles are so complex, you may have a serious problem and not know it until it is too late. This is especially true for folks that aren’t mechanically savvy. Inspections may force folks that totally ignore car maintenance off the road until thay are safe to drive. I still think paying $40 a year to have a real comprehensive test on a vehicle makes sense so I will still do that even if I have to take my older truck to a dealer to check it out.