Dane you still don't get it. It's not about having a "career" in these fields. The fact is that teens and college students used to do these jobs in the summer and it made them better people who appreciated hard work and sacrifice. Besides, even illegals don't want to do these jobs anymore they want to make more money in construction and such.
Yes they did but due to lower birth rates, abortion, and general affluency of the avg. native born American they are not doing those jobs anymore.
What's your solution, go into high schools and make kids take those jobs at the point of a gun?
BTW, amusement parks around the country now have to recruit college students from around the globe to fill summer psoitions, even though they do massive recruiting on American college campuses.