> Once you can you really start to appreciate the work that folks like your friend do.

That can be a real double edged sword.

When you realise how good things can be it means many of the everyday/average things can become intolerable.

I'm happy that I've got slightly dodgy eyesight in that I don't really care whether something is in HD or 4K (I can still tell if my wife has selected the SD version of a TV channel, and I'm still way above the minimum standard to be able to drive).

I'm also happy I didn't inherit my father's audiophile hearing. I can do blind listening tests of different bits of audio equipment and barely hear the difference between them whilst my father (even in his 80's) can provide a whole list of things that are wrong/better/different about each of them (and he's not just making stuff up).

The biggest test is that I can also drink most supermarket instant coffee without complaint. I've got some friends that walk 25 minutes each way to their favourite coffee vendor multiple times a day as "everything closer is awful", but then that's more about them having a nice routine to get them away from their desk.