In the end for both the professionals and the amateurs, the key is the time invested in learning and the practical experience accumulated. If you did lots of wi

In the end for both the professionals and the amateurs, the key is the time invested in learning and the practical experience accumulated. If you did lots of wiring and properly learned for it, are you even a DIY anymore? Getting your license would probably be a formality by now. So I think the difference should be made between competent people with or without license, and gung-ho DIY who'd start everything by themselves with a philips driver and a 5 minute YouTube video. And I don't think anybody here advocates for the latter.