It's a great question.
I'd love to see universal day care. I think that's going to be a wonderful thing. Exercise is key. In the patients I see, I'm heavily involved in managing kids with school and learning and development attention problems. With good evidence, I can confidently say, exercise has been shown to have a demonstrable benefit in terms of attention span and reduction in anxiety. A recent study showed that just 20 minutes a day of aerobic exercise for kids can have significant benefits. That's huge.
For many of these kids, we may be able to prevent some of the mental health challenges. Nature and nurture are both important, though. Some kids are born with a propensity for mental health issues that may not be preventable but can be treated. So both will be important—prevention and treatment.