I'll add to that - by your logic shouldn't medical doctors and car mechanics also switched to being tipped positions? That way rich people can voluntarily pay m

I'll add to that - by your logic shouldn't medical doctors and car mechanics also switched to being tipped positions? That way rich people can voluntarily pay more through tips, while the poor people don't need to tip. Since that doesn't happen, and likely won't happen, that strongly suggests that your argument isn't valid.