The golf teaching industry is in the best place it's ever been. Real data/science is being infused into the industry, there are several great certifications to receive, great people to learn from, technology allows for more information to be shared, swings to be easily captured/analyzed, Trackman, K-Vest, pressure mats give you unbiased data.
Having said that, Brandel is right, maybe not the best choice of words, but most instructors are not qualified to teach. They spread and recommend mis-information. If golf instructors were doctors, you'd have a lot of dead patients due to malpractice.
While not directly aimed at the PGA, anyone who has had to go through the program knows what a complete joke it is. Brandel is right, a lot of the change and good information being shared in instruction is coming from guys on YouTube, Instagram, independent web forums 😉, guys who started down an untraditional teaching path, it's not coming from the top down.
Here's a list of the top 50 instructors in the world, there are plenty of guys on that list that will do more harm than good. Personally, I've taken lessons from two of them, Dana for full swing and David Orr for short game. I think I would only recommend seven of them to someone (full swing).
The 50 Best Teachers In America - Golf Digest
The 50 Best Teachers In America: The definitive list of golf's best teachers, as voted by their peers
The only reason for using a 60 degree wedge around the green is if you are short-sided with rough or have to go over a bunker with the pin close to the bunker.
The idea that every shot around the green has to go high is a common one amongst players who score poorly around the green.
Over the past few months I have been chipping with an 8 iron with my putting grip if I can and I have been really pleased with the results. It gets a little bit of bite and the rollout is easy to control because it's just like a putt.