Everything is relative. My grandfather's biggest dream was to live in a city, that's it. Now young people dream (and envy) of way more.
So I'd say there's more and more future for youth. They can afford, at least once in one's life: travel abroad, snow skiing, parachuting, going to a restaurant. It's just baseline jumped.
When you stop paying attention to the deluge of alerts and articles, you can focus on your own tasks and get to experience some neat stuff and wonderful people in this world.
Cultural optimism is likely to follow periods of growth and abundance, like buying a property in the 1970s for $5K and selling it in the 2000s for $2M. The last couple of decades have seen a reversal of this effect, so I don't think it's unreasonable that more people are feeling pessimistic about the future and their place in it.