Why don’t more restaurants do this?

Simple, obvious and useful – the waiter enters the number of diners into the EPOS machine before they print the receipt. Why doesn’t all EPOS software have this functionality? In Switzerland, where eating out is expensive, restaurant staff always bring diners all their own separate bills. No awkwardness, no “But I just had a salad” issues. I’m interested to know what the standard is where you live… Comments please!

Many thanks to Phil Guilfoyle of Online Logic for noticing this and suggesting this post.