When we use when or if or any other subordinating conjunctions (unless, because, and once, etc) to talk about a thing a non-specific person might have done in the past, do we use past tense?
Example 1: (when writing an article and referring to the reader's past.)
(1) If you had an unhappy childhood, you are more protective of your kids.
(2) When you had an unhappy childhood, you are more protective of your kids.
(3) Unless you had a fortunate childhood, you are likely to be more protective of your kids.
(4) If you are a beginner, your muscles can feel sore because you started lifting weights not long ago.
Example 2: (when talking about a non-specific person's past)
(1) If a person had an unhappy childhood, he/she is more protective of his/her kids.
(2) When a person had an unhappy childhood, he/she is more protective of his/her kids.
(3) Unless a person had a fortunate childhood, he/she is likely to be more protective of his/her kids.
(4) If a person is a beginner, his/her muscles can feel sore because he/she started lifting weights not long ago.