Are today's teenagers being less likely to work the real cause of the labor shortage?

Talking to some dads in the sauna at my gym this morning because the small waterpark at my gym is only open 3 days a week because they can't find enough lifeguards. Another local waterpark I grew up going to is also only open on Saturday/Sunday for the same reason, when usually its open 7 days a week in the summer. A popular burger restaurant is only open Thursday-Sunday because they can't find workers.

One of the dads says his teenage son is old enough to work but doesn't because he has to focus on too many extracirricular activities for his college applications.

A 2nd dad said he can't get his son to do anything these days, all his son wants to do is play video games or sit on the couch on his phone. He said he tried bringing his son to an Astros game and his son wanted nothing to do with it and bitched the whole game.

A 3rd dad says his son is 17, almost 18, but has never worked, doesn't even have his driver's license - he said his son has no interest in driving or having a car, and that many kids at his high school are the same way - no interest in having a car or driving. Which is the main reason(at least when I went to high school in the mid 2000s) that high school workers have jobs - to buy a car and pay for gas/insurance/upkeep for the car.

With teenagers these days not wanting to drive, the main motivation to work isn't there, and then you have lazy kids who only want to play video games and play on their phones, and kids who are so worried about college applications they don't have time to work, your teenage workforce is smaller.

In my day in the mid 2000s everyone at my high school had a job. I went to a more privileged well to do high school with plenty of kids who had rich parents so its not like it was a bunch of poor kids trying to help their families. Not many needed a job but we all worked anyway. Whether it be just a summer job or a year round job.

So if these teenagers these days are too lazy to work because they'd rather play video games or just don't want to work in general, why would they want to work after college? I worry about a lack of work ethic for their generation.