Right, that's true I suppose. But also, if you don't have a car for example, you don't need to think about the laws of how to legally drive a car, since it doesn't apply to you.

Similarly, if you don't collect nor process any personal data whatsoever, directives like GDPR doesn't even apply to you, so there isn't really any way (easy or hard) to "crucify" someone on violating that.