After you pass (if you pass) the three written exams, then comes the A&P check ride that is another three oral (aprox 2 hrs each) Q&A interrogation followed by a half day being observed doing airframe stuff and then returning the next day for another period of being observed performing powerplant maintenance.
Thank God that it is not easy to obtain an A&P. Just think about all those self maintained Honda, Toyota, and Ford leaking oil and exhausting smoke up and down the highways.
There certainly is a great argument for 'fix it if you can' but if flying heaps were to start raining from the sky we would really have a problem.