You're painting with a mighty broad brush there. I know many 17, 18 & 19 year-olds with strong work ethics. In most cases the apples do not fall far from the trees.
Send them to me and I will put them to work. There's not as many as you might think. And, just because there might be a few willing to work, what do they know?
Once again, as I told one lazy 18 year old that he was a P---y. There were kids his same age getting killed, losing arms, legs and being horribly burned so he could be a lazy slug.