[phobotics]

Tipping in the UK at restaurants has been a thing for a long time.

However it’s normally included in the bill as service charge so you just pay the bill and don’t have to decide how much to leave yourself. In London it’s usually 12.5%.

You are allowed to ask them to remove service charge from the bill but it’s an uncommon thing to ask.

[graemep]

I just treat the service charge as part of the price (when deciding where to eat or what to order) and would only not pay if it was really awful (not happened yet) but I will tip a bit extra if service is really good.