I've had a number of beards. My stubble is very coarse, and my face very sensitive, so shaving has always been unpleasant.
I first learned to shave using single bladed Bics - no way would i subject anyone to that.
Electric razors just make a mess of my face and keep clogging, so I've given up on them.
I've tried lots of systems, but Mach 3 is the best for me - no need for more blades than that, i think. I've taught both my lads to shave with these.