When writing about a general topic in emails, essays, business correspondence or whatever, I often wonder which generic person pronoun to use. My quick Google search for sample sentences using such pronouns as one, people, you etc. returned a lot of examples, but I haven't been able to figure out any rules or general tendency in them.
Is there any common ground of understanding among native English speakers when to use "one", "people", "you" etc?
The following are just some sample sentences I checked during my Google search.