This sounds like a great idea except, perhaps, that sending data through Tor is always slower than normal connections on the Internet. Tor is a highly-secure method of connecting to web sites.
One UK grassroots internet service provider is currently testing a data only SIM card that blocks any non-Tor traffic from leaving the phone at all, potentially providing a more robust way to use Tor while on the go.
“This is about sticking a middle finger up to mobile filtering, mass surveillance,” Gareth Llewelyn, founder of Brass Horn Communications, told Motherboard in an online chat. Brass Horn is a non-profit internet service provider with a focus on privacy and anti-surveillance services.
Details may be found in an article by Joseph Cox in the Motherboard web site at: http://bit.ly/2CAox9V.