I mean, kind of? You can't really start any kind of trade business without credentials (other than low-paying under the table work for people who don't care).
You can't stop someone from doing electrical repairs on their own home but if the house burns down as a result, the homeowners' insurance will probably just deny the claim, and then they risk losing their mortgage. Basically, if you make it bureaucratically difficult to do the wrong thing, you'll encourage more of the right thing.
You can't stop someone from doing electrical repairs on their own home but if the house burns down as a result, the homeowners' insurance will probably just deny the claim, and then they risk losing their mortgage. Basically, if you make it bureaucratically difficult to do the wrong thing, you'll encourage more of the right thing.