I would say that not anyone can make the repair. It does take an effort to learn and understand the skills and know what to do on certain products. Especially back in the day, cars did not have many electrical parts in them. People liked to get their hands dirty, get into a car and fix things. In those circumstances, yes.
YouTube allows us to learn more about DIY. There are areas where it's not recommended, such as taking the battery pack out of a Tesla and putting it into another car, for example. These are risky actions that I would say should be left to the professionals and technicians.