Sure, bad things happen. But there's a trade-off between regulatory burden and economic vibrancy and adaptability. We all know that taxi regulations sort of existed because a lot of tourists would get taken advantage of. But then, the taxi companies and politicians exploited it to promote local monopolies and enforced it with limited edition, expensive taxi medallions that prevented people from starting up legitimate cab companies to compete with the incumbents.

That sort of thing happens all the time and that opportunity cost is not often talked about.