I'm with Polly and Kyle - there could (should) be some basic tutorials showing techniques and tool handling. from that, each individual can decide if the want to buy the tools and give it a go or pass it along to a professional for repair. At least they have a choice. My dad taught me to solder, he probably learned how by reading a 1937 boy mechanic magazine!
It's not feasible to have a how to for each device/component but I think a few good tutorials on things like replacing an SMD resistor or IC, repairing a broken copper track, identifying and re-flowing a dry solder joint, even basic through hole soldering would go a long way to empowering more people to have a go.
