Honestly, this square is overrated. However, if yo...

Honestly, this square is overrated. However, if you're not from the area, it's definitely worth a walk through. Don't be on of THOSE people though: put away the iPads and expensive equipment, make your kids hand over electronics. Union Square showcases both the high economic standing of the Financial District, and the extreme poverty and neglect that many people live in here.
Recommendations: Walk towards China Town to get boba tea and snacks, and keep walking to get to North Beach where the pizza is good. Try and snag a cablecar ride up and over the hill to Ghirardelli Square, which is cuter and much more affordable.