No there isn't. Most teenagers don't want fast food jobs or any other job that won't help them get into college, and most of those who do already have one.
Do you have stats on that or something? When I was a teenager (late 2000s) you definitely wanted a “good on college application job”, but you probably didn’t get it. At that point you wanted a “walking around money” job like MacDonallds, but you didn’t get that either because adults were taking all the teen summer jobs since things were so tight.
Yes. It's been a gradual change, but it's become really evident over the last decade. It's not that they don't want money, but extra-curriculars have a lot more importance on college applications, and those prevent part time jobs.
Also, multi-player video games are occupying kids free time, and don't require the folding money that previous hobbies like cars did.
Yes. Places stopped paying reasonable wages as they were too busy funneling it to CXO's/shareholders while completely losing track of the plot that there is no guarantee laborers are going to back what you're doing. Frankly, I like the change.