Is it typical native speaker usage to inconsistently use the pronoun "one" in a paragraph?

[NB: This is a re-post of a closed question that was rightly judged "off topic". It does present an interesting problem, though, so I've rewritten it and asked an on-topic usage question.]

Is it typical native-speaker usage to inconsistently use the pronoun "one" in a paragraph?

For example, in the following paragraph, one is often replaced by other pronouns, viz., you/your and we/our. I'd like to replace these inconsistent pronouns with either one/one’s or you/your. Which of my two revisions ([2] and [3]) is more idiomatic and natural?

[1] One needs to be very careful about discarding our old cell phones because you may leave behind information that one thinks that they have erased. You never want to find that one’s bank account has been drained because someone uncovered our PIN number and one certainly wouldn’t want your boss to find their competitor's phone number. Fortunately, there are precautions we can take if one wants to avoid these problems.**

[2] One needs to be very careful about discarding one’s old cell phones, because one may leave behind information one thinks one has erased. One never wants to find that one’s bank account has been drained because someone uncovered one’s PIN number, and one certainly wouldn’t want one’s bosses to find their competitor's phone number. Fortunately, there are precautions one can take if one wants to avoid these problems.**

versus

[3] You need to be very careful about discarding your old cell phones, because you may leave behind information you think you have erased. You never want to find that your bank account has been drained because someone uncovered your PIN number, and you certainly wouldn’t want your bosses to find their competitor's phone number. Fortunately, there are precautions you can take if you want to avoid these problems.**

Solution 1:

Definitely Number 3 is most natural. This kind of advice needs to hit home and by talking to the reader it is more likely to do that. Number 2 sounds forced (maybe a laxative would help?) in its attempt to remain distant from the reader and to what end?