Almost all of my liquid assets are in mutual funds, the bulk being in Vanguard index funds. It has been that way for decades. I started looking for index funds for my Dad before they even existed, after learning about modern portfolio theory at the University of Chicago Business School. When Vanguard set up its first mutual fund in 1976 or so, I was right there to invest for my Dad, and soon after myself with a few bucks. And then I got deflected by real estate, and most of my money went there, until about the late 1980's, when I started to invest elsewhere again. Now my life is quite complicated financially, and it takes quite a bit of time sad to say.
That's cool. How did you even hear about Vanguard back then? They certainly wouldn't have had a financial advisor network.