Yes, thats finally an option since a few years back. It was not available before, and used to be too slow in comparison to WIFI. Yes, 11 years, but finally settled down since last year.
It's more secure to get a 3G/4G modem and just pop a new SIM in when switching countries. A headache at the start but definitely more comfortable than always going to a cafe. 11 years though, wow, that's something.
I actually got an international data plan from tmobile that is supposed to be partnered with local data carriers in 120 countries. Supposedly it works fine with tablets and mobile. I wonder if this will be sufficient since I am not a day trader.