What do you mean by "young people"? I am a seasonal camper and our campground is full of folks in their late 30's to 70's - there's a nice mix of ages and vocations. We have a lot of mechanics, teachers, nurses, carpenters, a few business owners, a few retirees, etc.
A lot of the overnight campers are younger people (20's to 40's) who are tent camping or camping in a starter pop-up or trailer or vintage RV they are bringing back to life. It's great to see a baby in the campground and we do that quite often.
My dad was a long haul union truck driver and my mom was a school cafeteria lady once my baby brother started school. She was a stay at home mom before that. We only had one car for a long time and mom had to leave the house late at night to pick dad up or take him to work a couple of times a month. A well off friend sold them a second car for well below book value because he worried about mom taking us kids out at night. They always live within their means and are happy with what they have...that's just who and what they are. They also got me started on camping because a week of tent camping was our family vacation every summer. I am blessed that they are in their 70's and come camping with me a few times a year.
It will be interesting to see how other folks respond to this thread. I don't know to what extent your observations are skewed by your choice of campgrounds and your travel patterns or if there is any hard data to support or refute them. But, this will be interesting.