I've done this for a club's webpage that I admin and what I found most challenging, is to describe what the fuck the user is looking at. If you just link them the RSS XML and they click on that, then the browser downloads the XML file, which isn't useful. They have to copy that link and then paste it into their feed reader.
Ah, right, what feed reader? If they don't know what RSS is, they probably don't have one installed. Do I just tell them, to download a specific feed reader app for whichever operating system they're on? Do they know what an operating system is? And do I really want to recommended feed reader apps for operating systems that I don't use myself?
Well, and finally, if I do describe all that gubbins, will anyone actually read that rather than just noping the fuck out?
So far, I have a link to the Wikipedia article on feed readers, which somewhat explains the concept and has at least a few links for the different feed readers out there. But yeah, I don't actually believe anyone is going to read that and then know what to do...