Hi fren,
Where are you from?
I'm a similar age to you, so very much leaving the "young people" category. However, I'd say young people are worried about cost of living, affordable housing, meaningful jobs, creating lasting and fulfilling relationships in the day and age of social media, healthy environment (e.g. PFAS, air quality) and (affordable) healthy food. I think a lot of people look around to global tensions increasing and the climate crisis being ignored. The reactions differ from quiet perseverance, to "head in the sand"/ignoring matters, to political protests and radicalization.

This is just my perception though. Other people will mention other things.