Something like it should be included in any materials sent to prospective students.

FWIW, when people talk to me about wanting to learn to fly I have a little canned speech:
- Why do you want to learn to fly? What do you imagine yourself doing in an airplane, e.g., traveling for work vs flying for fun. This allows me to recommend the type of aircraft they should look into, and the type and cost of the equipment and training they’ll need.
- Who do you expect you will fly with? Do you expect to take the spouse and kids and friends along? Are they enthusiastic about this? Or do you see yourself doing that only occasionally, and mostly flying with other flying enthusiasts? (I emphasize that, for most people, making flying friends is a major positive aspect of learning to fly; that flying friends are more likely companions than existing friends/family; and that if they fly alone they will stop flying.)
- Spend time finding the right flight instructor. Sample several. Don’t worry too much about their paper qualifications: that’s the FAA’s job, and you don’t need a former test pilot for your Sport Pilot training. This person should have potential to become a friend (which may or may not happen), but certainly should be someone you respect, someone in whose hands you feel confident putting your life, who you feel you are learning from. Most of all, enjoying spending time in the cockpit with them is key.
- Design your training program to be fun. Your flight training is not a prelude to your flying career, it is part of it. Design it that way. Ask your instructor to help you to do the things you ultimately want to do, as part of your training. If you want to travel, build a little more XC into the program than the regs require. If you aspire to do aerobatics some day, expand stall awareness/training to include 15 minutes of unusual attitudes, etc.

Cheers!