The whole thing is a money grab. The truth is that they are just a bunch of letters to put on your resume that don't mean jack.
The fact that a person with no knowledge or coaching experience can attend a 2 day class and pass a test, now calling themselves a "certified coach" is a complete joke and disgrace to our sport. I have known too many people picking up these certs, without any background or experience in the sport, just to pad their credentials and call themselves a coach. This doesn't make someone a coach any more than taking a CPR class makes me a doctor.
I am all for education and learning, this is a must within our sport but we can't grow our sport in the correct way with "coaches" who shouldn't be coaching. I see this at the club/hs level more than anything - colleges will weed out the pretenders - but "certified" club coaches, collecting loads of money from parents, with little to zero real knowledge and coaching ability are not an asset to the sport.
If the same courses were offered without "certification" would we see the same people taking the courses? If they truly cared about the sport, they would be there.
If the issuing body still offered the same courses without the "certification" title, what would happen to their numbers and dollars???
We used to have clinics and education without "certifications" but once the $$$ of the certification equation was figured out for both the providers and the attendees it became about the $$$ for everyone.
I have been to a lot of clinics and conferences that turn into discussions and essentially open forum conversations, guarantee that there is more knowledge sharing going on in these than any certification course.
Granted, it is better to have a "certified coach" who at least attended a 2 day class than someone who has nothing.
Pick up a certification if you think it is necessary but network, connect, build relationships, attend clinics, read books, have a conversation with those that know more than you, visit practices, watch - listen - learn.