Future of the classic car hobby may be unstable per experts?

Every sale has a buyer. Sellers can't sell without them. The classics don't go to the crusher. They simply change owners.
Youngest of my 5 grandkids comes here every Tuesday morn for 4 hours. I take him to the afternoon 4K class. He asked to ride papas red car from day one. Nothing new. All 5 ( 3 girls, 2 boys ) want to ride in it every chance they get.
When 4 year old classmates comment on the car and Benji says, "That's my papas red car. I ride in the front seat without my booster seat sometimes." I say, "I told you not to tell anybody." He says, "Sorry papa, I forgot." All smiles all around. Please know this isn't common practice. I'm not a bad grandpa. Little bugger was just bragging about a special ride in a special car.
I guess my point goes back to the beginning of this post and those new owners. What effects or influences result is anyone's guess.