> What sense of "obligation" are you referring to?
The sense of “sense of obligation” in play when one says “I feel the need to tip”, as I would have thought was obvious by the quoted bit I responded to.
> If it is obligatory then it definitely should be outlawed
It is not actually obligatory (except where it is advertised as required, in which case there is no false advertising), even if some people have a sense of obligation which demands tipping.
The sense of “sense of obligation” in play when one says “I feel the need to tip”, as I would have thought was obvious by the quoted bit I responded to.
> If it is obligatory then it definitely should be outlawed
It is not actually obligatory (except where it is advertised as required, in which case there is no false advertising), even if some people have a sense of obligation which demands tipping.