First of all, if this starts a rant, I'm not going to read them :) I ask this in all sincerity and with no bias.
It seems like I've been reading that "standard" tipping is going from about 15% to 18-20%. If that's so I'm wondering why? As the price of food and wine goes up, staying at 15% automatically gives the server a "cost of living" increase. A $15 entree that now costs $20 will generate an increase of $1.75 at a rate of 15%. I'd appreciate learning if my thinking is off somehow. (Well, I KNOW my thinking is "off" regularly but....!)