I would regulate and legislate the industry in terms of quality standards of personal trainers/coaches. There is too much negligence and lack of professionalism. Too many losers who get a certification online and call themselves coaches. Other losers just by using steroids and looking "good", promote themselves in social media and then offer coaching without ever even having picked up a book in their lives.
At the same time there is too much arrogance. Too many people that think they know everything and they talk and speak with so much arrogance when in reality they are losers. Same goes in the world of people who workout. And that goes down to our culture. Americans are arrogant by nature. You cant tell anything to anybody. An average dude get his steroids on a locker room, goes to youtube to watch exercise videos, plus he modify some exercises and invent others, and put together a routine that in his mind, plus the steroids, will transform him into Arnold in 6 months. That is called Gym Fuckery. And nobody can question him. In his mind, he did his research and put together the best routine in the world, with trademarks exercises invented by him, while using the best steroids in the world bought at a locker room without even a label in the vial. Down the road he develops heart disease at 40 and lives on drugs for the rest of his life while doctors tell him "you're just a statistic, is normal to be ill"
In countries like Brazil every coach requires a University degree and a license to practice valid for one year. Strictly enforced in every single gym. And as part of the culture Brazilian people value having a coach rather than putting themselves at risk by copying shit from others and injecting oils without even knowing the science behind.