Expect a steep drop-off in English once you leave big cities and established tourist trails, in almost every non-English-speaking country. Rural shopkeepers, farmers, and older residents often speak little or none, and signage frequently switches to the local language and script only.
The challenges are predictable: ordering food when menus have no pictures, explaining where you want a bus or shared taxi to stop, reading timetables, and handling anything medical or official. Numbers, prices, and directions cause the most day-to-day friction. None of this is a reason to avoid rural travel, which is often the most rewarding kind, but it does require preparation.
Download offline translation packs before you go, since rural mobile coverage can be unreliable. Save your accommodation name and address in the local script, learn to say hello, thank you, how much, and where is, and carry a pen for writing numbers. Rural people worldwide tend to be patient and genuinely helpful with lost foreigners, and gestures plus goodwill solve most situations.