So I like this idea and I’ve spent a little time in other countries doing something similar. The one caveat I’d say is that although it’s cheaper to avoid major cities it can be quite isolating. Depending on the level of english in the country you go to (I assume you are an English only speaker) you might end up not having a meaningful conversation in the flesh for weeks. I spent about 2 months in Portugal doing some…
One should absolutely, 100% make a good faith effort to learn the language of any country you intend to long-term reside in.
It's for your own health. For my two cents, it'll massively improve your standing in the community because you won't seem like some fly-by-night foreigner (common reputation of americans, which is fine when being somewhere as a tourist but not long term) and will allow you to have serious conversations with people or at least give you a reason to try and have conversations with people (who are generally nice about foreigners attempting to pick up the local language).