Well there are a lot of similarities. After all caves are sort of mines that people couldn't be bothered to make. If you ignore the shoddy lack of rails, sheave wheels etc maybe they're a bit like mines. In fact some of the diggers install scaff poles to simulate stemples, ladders, and lubricate rock to gain access, so even some cavers try to actively improve them to be more like mines. We shouldn't be snobby, let's be open minded here.