The tax rate being so high, and expenses so low that it makes living in SF not clearly the optimal economic output. And multiply that effect by 10 when you have

The tax rate being so high, and expenses so low that it makes living in SF not clearly the optimal economic output. And multiply that effect by 10 when you have kids. Just school for 3 kids would be, say, 100k after taxes, which would mean you need to earn 150k just to pay school. At 400k your tax rate in california is through the roof.