Lots of states, but not every state. California is also of particular importance because it's so big: nobody would care as much if Delaware had laws like this.

Lots of states, but not every state. California is also of particular importance because it's so big: nobody would care as much if Delaware had laws like this. However, in California, even if you only have a physical presence in some remote part of northern CA, suddenly that affects your ability to sell to 37 million other people.