We need to change how people are thinking about design, right, and open up that design process. One thing in the literature is a concept called i-design. You design for yourself almost. If most of the designers are white able-bodied men, for instance, then they're going to design for people like that. If they're adults, they're not designing for children.
I'd echo what Valerie is saying. It's brilliant. Technology isn't just some easy fix. We can't look at it that way; however, a lot of technology is there. We can build it better. We can make it different. Depending on what the specific problem is, then yes, we need more mental health counsellors, maybe even peer-to-peer counselling, more talking with people.