Unlike the US your ID is just an ID and not a form of secret or authentication token.
A SIM in the U.S. is significantly more difficult to acquire than a SIM in Mexico/many other countries.
E.g.
- Limit on # of SIMs purchased at retailers, low ability to use cash to purchase them, generally always on camera
- SIMs locked up behind the counter at lots of major retailers in the U.S.
- Activation requirements on U.S. networks for prepaid SIMs
Granted, if you're a company you can certainly acquire a lot of SIMs. A lot of questionable activity uses straw purchases, very similar to folks using smurfs to acquire pseudoephedrine in the 2000s.
this would be laughably easy to circumvent and terribly easy to abuse
