You’ll pay it anyway in the prices. In countries where tipping isn’t the rule, the restaurant staff are paid a much higher wage.
Don’t know about that
First time I went to Switzerland first meal out there I left a tip with my payment. Waiter picked up my payment. His eyes got wide and then he said to me You must be American. Tip is included. Here’s your extra money
Later he said if all customers tipped the way I did he would prefer to be tipped. Told him I appreciate good food and good service