I cannot widen my texts to new audiences

I have thought of the things thta I write of on a general level, so they apply to all cases I can think of. If they do not apply to some person or group, I am not able to widen them to that group too.
My texts suppose as a compulsory starting level the Finnish school education as it was in the '80's when I went to school. ('78 to '90) I do not have kids of my own, so I am not able to teach the starting leveö of respecting objective thinking, fact communication, basic responsibility and the like.