In my opinion, as long as your A-Levels are fitted to get you into the desired course, your EPQ can be on absolutely anything. One of the main bonus points of the EPQ is the development and showcasing of skills, so it'll be recognised whatever topic you choose. I want to be a primary school teacher and my topic is on politics! Two completely different areas of study.
Basically, an EPQ is basically a way to increase your UCAS points and to display your set of skills. The only scenario that I would recommend making it more related to your future degree is if your A-Levels are not really relevant to the course.
In terms of recommendation, if you feel like you are definitely getting into uni without it, it isn't really necessary - but you can still do it. It does take up time which you could be spending on your main subjects but if you are motivated enough then that shouldn't be an issue.
Of course, this is all just my opinion, but I hope it somewhat helps.
Hi I’m doing the epq and was thinking about ethics behind vaccinations as a loose subject idea, I’m planning to do dentistry at uni- would anyone recommend even doing the epq and if so is my idea to far out from the subject? If anyone is doing dentistry and did or didn’t do the epq I’d love some advice!!