I ll try give a list with a definition of why its mentioned
The first and foremost is
Inheriting a world that from their parents, which has not been well prepared for youth.
Facing new and unchallenged problems, which no one has faced before.
- climate change
- resource problems
- conflicts due to new idealism
Other things could be that sexual diseases are on the rise and those more at risk are the young.
The job market has changed where we find that a job is now not for life, so one needs to get multi-skilled and quickly.
Overflow of information is another problem. This can lead to confusion for young people. Where do they turn? Life was so simple back then, but now we have mass-media, the internet, mobile phones pounding us with offers.
Intrusion of privacy. With CTV cameras on the rise due to crime going out of control, young people just do not have the space to have their own privacy. Also consider mobile phones with cameras linked up to the internet. The government being scared of terrorism and watching everyone ever the more closer.
I am sure given the time, i could think of more. However its quite late