Certainly wouldn't say "never". It may be true in some places, but there's a successful gastropub in our town (open for one year now) which applies a uniform 20

Certainly wouldn't say "never". It may be true in some places, but there's a successful gastropub in our town (open for one year now) which applies a uniform 20% service charge rather than asking for tips. It doesn't have any more or less difficulty getting staff than other nearby establishments.