May I suggest youtube? Along with a lot of confusion and stupidity, there is a wealth of information. Not only have I learned such things as how to fix my washer, how to “deep clean” my dishwasher, how to change my dining room light switch to a dimmer switch, and how to determine why my car’s air conditioning didn’t work (I did have to take it in but I knew what was wrong and what it should cost to fix) but I have also learned how to darn socks, how to alter clothes, and how to mend sweaters, among many other useful things including some wonderful recipes and step-by-step directions. By the way, I am a senior citizen. Youtube for all its idiocy and idiotic censorship, and know-nothing know-it-alls whose reading aloud skills are on a 3rd grade level, is still an incredibly useful source of information. Anything you are likely to want to know how to fix can be found on Youtube.
I just had a flashback to an exercise conducted by the US Navy which I saw. The objective was to familiarize a group of sailors with a new inventory item. One sailor read the instructions, and two sailors executed the procedure in question while the rest of the group observed.All manufacturers should make a youTube video of their instruction manuals in such a manner. The participants in the video should be a “focus group” of people from the target demographic of the product. And if the first try doesn’t produce a satisfactory result - as judged by other members of the target demographic - rewrite the manual and retry as necessary.