It will be very hard for many, but I also think that, in many cases, it will help to build their resilience and teach them (and us!) to be grateful for the small things that we usually take for granted - being free to go out and about when we want, meeting a friend and giving them a hug, having a drink and a cake in a coffee shop. Even school and exams!
It will also help them to develop coping strategies that will enable them to deal with whatever life throws at them. For example, my teen dd and her friends are already working out proactive strategies to support their positive mental health - eating well, exercising regularly, meditating, staying connected to their friends etc.
This crisis may also teach them to value their physical health more highly. I bet there are lots of parents around the country making lifestyle changes to reduce their risk factors - eating better, exercising more, giving up smoking etc.
And forced time spent with families may strengthen the bonds in some cases, though it may also test them. In many ways, we are all being taught how to focus on what's really important.
The responsibility is on us as parents to model how to deal with this. Hard as it might be for us to get through this period, we need to try and focus on positive strategies to get ourselves and our kids through this, and we need to model the positive attitude and coping strategies that we want them to develop.