It sounds like you have somewhat of a misunderstanding about what kind of content Wikipedia aims to include. It does not aim to include every fact, only those which are “notable” - that is inevitably somewhat subjective, but the idea is it doesn’t want an article on every single government and military employee - only the particularly notable ones, who are generally going to be limited to elected officials (and even then generally only national and state/provincial, with local elected officials generally only being article-worthy for major metropolises), agency heads, generals, etc. Unless these relatives of yours hold one of those very senior positions, or has some kind of media profile/etc independently of their government/military job, they probably are not noteworthy enough to mention-even if they are relatives of someone noteworthy, Wikipedia isn’t trying to be a genealogy, so genealogical information is generally only included if the ancestor/descendant is independently notable, and otherwise is generally only limited to a generation or two (which may be why your father’s generation makes the cut but not your own.)

Furthermore, the demand for documentation is important, because how do they know you are not just making stuff up? (You’d think people would never contribute blatantly invented information, but people actually have done it-some people get some kind of twisted pleasure out of it, in other cases people have done it out of mental illness.) Reliable secondary sources (so not birth certificates or military IDs, which are primary sources) also help in distinguishing what information is “encyclopaedic” from what isn’t-if reliable secondary sources aren’t interested in a topic, Wikipedia will not be either.