I guess one other way these things are exclusive is that they drive up costs for sharing economy companies. Some of these companies are pricing so low that they are barely making a profit as it is. If their costs are even higher, they will have to drive up prices, and at least part of their appeal immediately vanishes. At least a few of the companies will die if that happens.
I wish people would realize this is a morally neutral outcome. Like, oh no, another company down the drain. It's not like they're a limited resource. We should be willing to sacrifice a thousand companies if they can't succeed on the profit metric under the rules we've set.
"Sharing economy" type companies are a good idea. They'll succeed, or better ones will. They don't need coddling.
If you want a libertarian paradise where government doesn't interfere, move to Somalia.