It has been (not so quietly) whispered that San Francisco is not a child friendly city. Statistically San Francisco has the lowest percentage of kids (under 18) than any other major US city.
In 1998, a European couple purchased a run-down Nob Hill home in a little alleyway off Washington Street as a pied a tier. They spent two years giving the 1906 Swiss-chalet style house a complete remodel that matched their artistic sensibilities.
San Francisco has always been on the leading edge of cultural trends, and in the 70s and 80s, it was a common sight to see stunt kites flown over Marina Green. As kids my brothers and I would lie prone under the kites, begging to be dive-bombed, screaming with joy and fear. Competitive kite flying may not have taken the world by storm, but kiteboarding certainly caught on.