There is no right answer. For some uni works, others not. It's hit and hope, not everything is within your control certainly within this country.
I'm a mature student who has been working for a few years now. Unless you absolutely know what you want to go into, be it a builder or an electrician or a firefighter, then working is just a dead and lifeless road that leads to essentially no where.
But I wasn't prepared for Uni when I was 18. The time is right now for me. I do think University is worth doing provided the course is right, the time is right and the preparation is right. But with the costs involved, you can't just 'go uni' anymore. You really need to evaluate whether that degree will add value to your career.
For me having done research and so forth, I believe it will and therefore Uni is a good option for me.