Absolutely go for it. Any route into university is valid.
I'm currently doing a second degree, and both times I did alternative qualifications to school-leavers.
The first time I did a HND in Media and Communication before going on to do a degree in Filmmaking & Screenwriting. The fact my classmates had all taken exams and were heavy into the theory, whereas I had been made to prioritise practical skill, was a little daunting at first. But I adjusted to it fairly quickly.
The second time I did a HNC in Applied Science before going into a degree in Biomedical Science. I definitely felt disadvantaged here, in that the rest of the class were all on the same page and I was definitely behind. It took me a lot of the year to feel like I 'caught up'' to them. But my practical skills were applauded and I was directly asked if I'd done a HNC after a lecturer checked my practical results at the end of one lab, saying that it was normal for people who had undergone the course I had to have a better grasp of certain skills than school leavers. So in a way I benefitted from taking a different route even though I felt I was missing some core knowledge at first.