You make a good point. Whilst I definitely do not like the US-style tipping system, when I visit the US I adopt it, because that's the way it's done there.

I'm wondering how many Americans, when visiting a non-tipping culture, disrespect it by not being able resist the natural urge to tip (or try to tip), which may well be offensive to the person they're trying to tip. And how much that habit, over time, may change the culture there. Quite a few, I suspect.

I'm not really too concerned by it, just pointing out that it is a two-way street.