The trouble with not having MMS in the US is that it's a "lowest common denominator" type service: not everyone uses it, but everyone expects you to be able to

The trouble with not having MMS in the US is that it's a "lowest common denominator" type service: not everyone uses it, but everyone expects you to be able to use it. People will be surprised if they send you a photo or group message and you don't see it, and notably, they also can't tell if you were able to see it or not.