I agree - it's annoying.
Not only price tags and sales tax, but also when you dine in a restaurant you will be expected to pay minimum amounts of tips before you can leave the restaurants - otherwise someone will yell at you.
The tiping really perplexes me.
The owner of the restaurant pays less than a minimum to their servers.
and then the clients are expected to pay the other half? What?
If they don't, servers get mad and call them cheap and hearthless, as they can't make the living without the tip.
It doesn't make any sense.
Thinking to make similar video to sales tax about the tiping culuture, to help me figure out that weirdness.