I did live in the bay area for a few years. It is expensive but 10k is too much. The generous explanation is you got rich and just gradually went out of touch.
Now I grew up not that long ago. I am still in my twenties and I did grow up in a major city.
But I might be able to provide some perspective.
I grew up without a computer except for old donated beaters. Free. For fun we ran around outside, and hit ant piles with sticks. We ate beans and hotdogs, and old clothes from yard sales. There were injuries. Scrapes and bruises.
There was not a single moment me or my siblings were concerned about wealth or costs or feeling poor. We just had an amazing time playing. Balls, sticks, junk, broken bikes, old hammers, string, nails, grocery bags, old books, half used art supplies. Children do not care about quality. They dont care about nice clothes. They dont care about formal education. They just crave stimulation.
Quality stimulation does not come from money. I dont even know that it can be bought.
When I look back and think about what I would change, I wouldnt add daycare. I wouldnt add nice food or clothes or technology, or tennis teams or memberships. I wish I could have seen my dad everyday. I wish my step dad became better friends with me and showed me coding years before he got cancer and died.
Money is just not what kids need.