I don’t regret not finishing a degree, the first time I attempted it. We don’t have the same system in the UK as the US does, you don’t have a ‘major’, you just have one subject, and while there may be a few options to choose between, all your modules are related to the topic you’re studying (sometimes people study a combination, ‘X with Y’, but normally it’s just X’). It’s very hard to switch to a different programme, and you generally can’t switch outside the department at all, you’d have to drop out and re-apply.
I hadn’t really wanted to go, but got basically forced to pick a subject and apply by my mother and school. I realised once I was there that I wasn’t really interested in what I was studying, it wasn’t going to lead to anything I wanted to do, and as the government funding assistance is only available for your first degree, I probably wouldn’t be able to go back and do something else later if I did finish. My mother was furious when I dropped out, everyone kept telling me I’d regret it.
I’ve never regretted it for a moment; I went off and explored the world instead, now 15 years later, I’m back studying what I want to do, in a topic area with job shortages.