Peninsula? I live here with my two kids, it's full of kids. Burlingame, San Mateo, Belmont, San Carlos, redwood city, Menlo park all seem full of people who moved from the city when their oldest was ready for school.
> Oakland
I've lived in Oakland for almost a year and I can count on one hand the number of times I've seen a child older than an infant.
Much more accurate to say Walnut Creek / Tri-Valley as far as the East bay goes.
I strongly suspect the answer to "do you see a lot of children around" depends heavily on neighborhood.
What do you do, just walk back and forth between Temescal and Uptown? If you look at the actual numbers, 21% of Oaklanders are children and 25% of households include a child.