I've noticed people usually use "you" or "they" but language would be a lot more clearer if we had a 3rd person impersonal pronoun to use. There is. It's "one" and it's still part of official english although it has mostly fallen out of use.
Use it. Make language clearer and less awkward. If I had a dime for the number of times I heard people pausing or stuttering over whether to use "you" or "they". Use "one". It's elegant, clear, and beautiful. Let's use it again.