Naw, you can have regulations for specific industry. They just wouldn't be relevant unless you are in such an industry, and should be organized enough that you can read and understand them when going into an industry, and have clear boundaries of when they become relevant in the simplified general law.

Also, the concept conflicts with the idea of local government and basically requires a large central world government. I feel like thr idea of simplified laws is mostly an impractical pipe dream propagated by people who don't like that they can't dump poison into local rivers or sell people scams that harm them.

Here is how we can get a proper measure of the problem: how often are people harmed by complex contracts they signed but didn't understand, vs how often are people harmed by laws they didn't know existed? And how often were those people doing something meaningfully harmful to someone else and should have known better on basic moral grounds?