LOL nah.
Have you ever heard of the Urban Debate League? This is a debate league that is entirely comprised of debate programs from inner city schools. Any school can create a debate program and join the UDL, and they will give you money to become a traveling team if you do well enough. Many schools sent their students to stupid expensive debate camps, too.
While our school was part of the NFL, my family was relatively broke compared to the families that you describe. They still did their damnest to keep me in debate. Very few of my team members were “privileged.”
There were plenty of scholarships that gave us the ability to attend debate camps at significant discounts, and many took advantage of them. There were plenty of kids who were able to pay outright, but it certainly wasn’t exclusive.