Understood, but just for perspective, we humans now have devices that seamlessly translate (more or less) foreign languages right to your ears. That's magical, sci-fi stuff. To nitpick it just because it's not readily available to all 7B+ people in the world is a tad harsh, though I know that wasn't your intention.

Relatively affordable international roaming has finally made it to the US with the $10/day ATT and $5/day Verizon plans.

I believe European rules go in effect this year to make roaming affordable as well.

To say nothing of the availability of prepaid SIMs in most countries.

Right now, it's pretty infeasible (without NN chips) to make this work without something else handling the large model. Depending on how long folks have been working ons tuff, in a few years (IE 2018-2020), it'll be feasible