The heck you say! Tipping is getting absurd, and contrary to some opinions I believe it is actually some Americans who have been changing the customs in Mexico and elsewhere -- and the locals of these locations (at least those who don't want tips for their work) are not that happy with this change.
Call me a cranky old cuss, but I'm drawing some lines. I don't mind tipping for personal service, but I'm not tipping for regular job performance -- especially for folks doing things that I'd rather be doing myself (pumping gas, turning on the faucet in restrooms, etc.). If I want to give charity (which I have, and will continue) then I'll give to charity -- but this American trend of tip jars and requests for tips everywhere has gotten ridiculous, as has the excessive tipping virtue signaling. [end rant]