You can’t install it on just any machine, rendering millions obsolete.

I don’t even get cases. Buy a sleek new shiny phone to cover it in bulky plastic, rubber or some kind of crappy cloth?

Your argument is crappy just because of that. You like cases so they’re alright but screen protectors aren’t? Please…

They have a deposit protection scheme in the UK where neither the landlord nor the tenant have full control of the amount. It’s very useful. Much better than the landlord having the money in his possession.