There is one difference which makes analogy irrelevant. You can easily distinguish houses where you are allowed to come from houses where you are not. There are simple rules and we are all know them.
URLs have no way to classify them to legal and illegal ones. You can propose a plan to w3c and to government to mark URLs with string 'illegal' in them, if they are illegal to visit without special permissions. It will make them distinguishable from legal URLs, and then it would be normal to charge for visiting illegal URLs. But this rule should be a widely known social norm, not a local rule of some site hidden on some obscure page that easy to miss.
URLs have no way to classify them to legal and illegal ones. You can propose a plan to w3c and to government to mark URLs with string 'illegal' in them, if they are illegal to visit without special permissions. It will make them distinguishable from legal URLs, and then it would be normal to charge for visiting illegal URLs. But this rule should be a widely known social norm, not a local rule of some site hidden on some obscure page that easy to miss.