This seems to be the most effective way of getting out of anything one can do wrong. Congratulations on your foresight to avoid all things that require legal documentation to be involved in, thereby avoiding both license fees and any penalties involved with not having a license.
I would suggest that one of your learned phrases be that not only do you only speak Spanish, but that you can't read Spanish or English. That should pretty much cover all of the bases.

I, like some others, will be buying my licenses as I need them and will weigh the need to buy them as the time approaches.