The best a man can get

There's a TV advert doing the rounds at the moment for a popular brand of shaver. The 'new' thinking is that while four blades was the dogs nuts last year, that's old technology and now FIVE blades is what you need for a properly close shave. In twenty years time, there'll be so many blades you'll need a pick-up truck to get ready in the morning.

The basic premise of the advert is this:

Mid twenties son and aging father, the son goes through the usual father / son activities of showing him how to use a computer, explaining his mobile phone to him and putting music on his MP3 player. It then introduces said shaver as another piece of modern technology that the father would know nothing about if it wasn't for his gifted son.

There's two ways of looking at this:

1, While computers, mobiles & MP3 players may be a relatively modern to daily life, I would expect the father to know a little more about blade shaving than the boy.

Or alternatively

2, If he can't be trusted with even the most basic of instruments, should you really be giving the doddery old fool razors to play with ?