Because there are too many personal trainers in the gym and too many farts. Some coaches in the gym look weaker than you. Do you still want them to guide your training? I don't think you will. Besides, it's too much trouble to ask private teachers. You were his father before you got the card. But if you find that after his guidance, the effect is not great, you don't want to renew the fee. Then the gym coach may haunt you and bring some trouble to your life.
In fact, if you think the training effect is good, you can actually check the information yourself. Ask others for advice and make a plan, and then implement it. In this process, you strengthened your will and exercised yourself at the same time. These things can't be given to you by the gym coach. Moreover, there are many coaches in the gym, and some coaches lack certain knowledge reserves. Letting them guide you, voluntary movement, may harm your health. Hum, those gym instructors who lack certain knowledge are lazy and just want to mix your money. I hope you can realize this.
If you must ask private teachers, you must first exclude those coaches who prevaricate about exercise. Well, there is also the need to pay attention to those coaches who keep their mouths shut and let you get the card. Before you apply for a card, get to know the character of the personal education through others, so as to avoid the coach pestering you when you don't find a renewal fee in the future. In fact, if you want to have a good fitness effect, you need to make your own fitness plan and strictly implement that plan every day. If you can't do this, don't think about the good fitness effect.