Acknowledged to be one of the best university systems in the world, easy to apply for, and as long as you've taken your qualifications (doesn't matter from what country, either) they'll let you in; age is no barrier.
Sure, it'll be a little freaky being in another country, but so what? What's university about if not the experience of grabbing something new and out of your comfort zone? Heck, what's life about?
Anyway, just a thought there's plenty of great universities here, and if you're seriously thinking about it, then I can give you the scope on which are good for which subject.
To have more, you have to become more. Don't wish it was easier - wish you were better. For things to change, you have to change, and for things to get better, you have to get better. — Jim Rohn