A quick search shows average returns across the market sit around 8-11%. If we say 5% to be conservative, 1M returns $50'000 each year. That's not bad. That's a house in a quiet neighborhood with no worries about food, or debt. You're not living without a budget, but you could live without working.
In the last ten years or so, returns have been extremely high. If you look back at all the data available, you get a number closer to 3.5% or maybe at the most 4%.