Lets put it this way. What passive income (pre tax) makes you comfortable, if you were to put all your current net worth ( Which excludes the house you live in) in a very low risk instrument, say a 10 year government bond?. Keeping in mind, 1. The retained earnings are large enough and it will be redeployed. Hence will keep compounding. 2. Occasionally, you may have to dip into the investment for one offs.
I know there is no right answer for this question as well, since it depends on the individual. But is 360k USD per year considered decent? I know it depends on the city. But I have used a normalised number of 360k to keep it simple. (Actually I have used 1 crore per year (10 million INR) Indian rupees in this example. Converting it to USD based on the purchasing power)
Consider that while everyone worries about running out of money, you can also run out of time.
0 - https://www.epi.org/publication/inequality-2021-ssa-data/
Your example would be a portfolio worth over $7MM. If it was just exchange rate conversion it would still be over $2.5MM. With either of those annualized returns you would be living really well in most/all of America. I assume it would be the same in India or even more so.
Yes they do. The calculations are based on real returns.
As for the rest of the post, I can't really tell what you're asking.
All net worth in one single instrument, no matter how low risk, would not make me feel comfortable.