I think it really depends on what you want to go for. There are many jobs you can be a success at and make a good wage with without a degree or any form of higher education, but then their are other careers where without a degree your chances of getting into it and being successful are between slim to none. I personally want to be a game developer, some people teach themselves enough over the years that they're able to become successful at it without a degree, but those are quite rare, and most of those who are successful have a relevant degree. Whilst you can learn most of it at home, there are some things that are too advanced it seems to be taught anywhere but university's, and that's why I think a degree gives you an edge in this field, but like I said, it really depends on what job/career you are going for as to whether a degree has any relevance or use.