I&#x27;d imagine it&#x27;s fundamentally because restaurants don&#x27;t actually use a precision measurement device to dole out drinks. If you saw the cup was low you could complain, and if they used fraudulent cups that said 12oz but were really 11oz, then that would presumably pretty easy to prove (since the now-wise customer would have a cup).<p>I&#x27;d expect state laws to be pretty specific about what types of measurements are regulated, but data usage seems like it would conceptually fit given the opaque and after-the-fact nature of its reporting.<p>Phone companies have been keeping call records forever, and even printing them line-by-line on paper in the past. The design theory behind IP was kind of to avoid that kind of centralized complexity and its associated overhead, but alas Comcast is hell bent on reimplementing it because decommodification is profitable.