Justin Roberts' concerts are packed for his upbeat, power pop tunes that lure kids to the stage to dance - mosh-pit style - to tunes about a whale name Willy, trick-or-treating and a stay-at-home dad.

We learn certain emotional truths through experience. We can be scared, but still be OK. We can build resilience. We can let go of things. These lessons can take a lifetime to learn. But what if we ...