What makes a career adviser?

** Most schools cut careers advice**
Research suggests careers advice has been in reduced in eight out of 10 schools in England this academic year.
< http://www.bbc.co.uk/go/em/fr/-/news/education-20452398 >
I’ve never really been a fan of careers advice. In the mid 1980s I was told that the best way forward was to be a tree surgeon when all I wanted to do was fly fast jets or play football for England. Not particularly realistic goals but you need to dream.
I’m not knocking tree surgery but believe me that was not the right path for me. Who are careers advisers? Have they had long successful careers and are spending their dotage giving advice on how to replicate their success? If not, I’d like to know how they qualify.
I’m all for helping people make wise choices but shouldn’t we worry more about the shocking state of secondary academic qualifications first?