Tipping is a flawed system. People feel obligated to tip even when they get bad service because it's such a faux-pas not to tip. Folding the tips into the price could give patrons an opportunity to be more assertive when it comes to voicing themselves about bad food/bad service. And maybe  owners who adopt this system will have more of an incentive to be accountable for the quality of food and service. I've had numerous experiences where the server didn't deserve dime-one of a tip, but I never said anything and stilled tipped (begrudgingly). Now, you can bet if tipping is mandatory, I will have higher expectations.