'round here in Central California there are, in addition to the various Highland Games, a number "celtic faires" and music events throughout the year. These are all very family-friendly things, such as the Ardenwood Celtic Faire and the Sebastopol Celtic Music Festival. Kilts are all over the Ardenwood Festival, less so at Sebastopol, but there are kids everywhere!

These are nice events and I always enjoy them a lot.