Alternatively, if you have $2m in stocks that are growing, you could consider the growth amount as potential income, because you could always sell it. Generally the growth is better than 3%, but down times will also hurt worse since you might have to sell at a low.
Or you could purchase a residence with $1m, and buy dividends with the rest. Taxes on the residence will be about $10k, with dividend income of $24k, leaving $14k for food, etc.
You won't independently wealthy in any of these scenarios (not in the Bay Area, anyway), but in these scenarios you don't actually need much from a job, maybe $40k with a family. So you should be able to save several years worth of that on a Bay Area salary, which leaves you with quite a long runway.
And if things get really bad, you can move to the middle of nowhere, buy a house for $300k and actually be independently wealthy.