The training industry as a whole is HUGE compared to when I started. Back then (20-25 years) you had to have a cert to get trainers insurance.
Exactly this & to run a Gym here you've got to be qualified to run the business end which means dealing with sponsorship, setting up seminars...the finance of the Gym.. also to be able to teach new trainers who are learning for 2-3 years like I did.
Sure there's trainers with basic qualifications who've done a few seminars & online courses but here there's jobs which are seen as proper careers in Gyms or health clubs so it's 2-3 years college & exams.
I had 4 written exams over 2 days & also an examination board of 4 people who asked questions & gave me a written problem to solve which could be anything..mine was a marketing question
