Only tip your server at restaurants and food delivery people, anywhere else is a scam. Servers and delivery people can be legally paid way less because they're expected to live on tips, its shit but its how it works. If you don't tip them they could have basically worked for you for as little as 4$ an hour. If you're worried about amounts, just go for 15%, its the expected amount. Skip if they suck at their job though.

Grab a gun ASAP maybe you could need it.

It depends on the business. My advise would to look around you to see what everyone else is doing.

Tipping culture used to be a courtesy, but now it’s been classified as part of salary so restaurants don’t have to pay minimum wage to their waitstaff. You’re not required by law to tip, but depending on the place, waitstaff will remember if you tip or not and how much.

Tipping has not gone away except in some places where they explicitly say it’s not necessary.

Typically I double the tax amount and leave that as the tip. I will also round up from there if it’s an uneven amount to reduce change. Finally, I’ll pay more if service is exceptional or I’m being served by someone I know personally or if they’re doing me a favor.

Some places include tips in the bill, so be careful. I also usually don’t tip if picking up food because there is usually no guarantee that my tip would actually go to the people who actually prepared my order.

I also tip other service jobs (Barbers, mechanics, plumbers, etc..)

You do not have to tip. Feel free to, but there is no law, no moral reason, and in a Capitalist Society it is enforcing the status quo. The tip is just a way to subsidize the owner of the restaurant and ensure workers are never paid more then minimum wage without tips.

Yes, if you don’t tip they will call you a Canadian or worse.

No