It might be worst in the USA. I don't know. But telecom companies all over the world seem to be in love with arbitrary restrictions on how you use their infrastructure.

All so that they can sell zillions of different plans for slightly different services, overcomplicating the market.

I really hope that some time in the future, an internet giant such as Google will step into the mobile internet space and simply regard all bandwidth as bandwidth. Without caring whether it's used for voice, short messages, long messages, video etc. It would make life so much simpler.