What kind of qualification that makes you earn the professional photographer title?

I am an experienced photographer with nearly 24 years of experience in the field. Started photography at a very young age with film SLRs and then moved to digital. 

Awards, experience, portfolio, and history of paid jobs a photographer has got. I believe those would support the argument of someone self-proclaiming themselves as a photographer. 

I dont agree fully with Experience super ceeding Qualification but in some what areas it does, these two factors are parallel to each other experience with a perfect qualification and knowedge is the key answere to this.