You must always understand the starting point of something. The rest of the world didn't start with tippping, hence why they adapted without. When restaurants in the United States have tried removing tipping, they lose their best waiters to rivals whom still do offer tipping, which causes them to quickly switch back to tipping.

It's like credit cards and mobile payments. Why has India and China embraced mobile payments so much more than the west? Because they never had credit cards! The delta between paying in currency and paying with a mobile phone is vastly greater than the delta of paying with a credit card vs a mobile phone. So the places which had credit cards in the past, mobile payments are not as ubiquitous as in China or India.

The starting point is extremely important.