[DelTaco]

While index funds were arguably a much much more important step, there were few funds you could invest in for less than $3,000 up until several years ago. And those that were less than $3,000 initial investment were around $1,000. A lot of folks can't afford that all at once.

[toomanybeersies]

Given the expected gains (or losses), is it actually worth investing in equities if you have less than $3000 to invest? If you only have 3 grand to your name, you probably shouldn't be investing it.

Personally, I've never invested less than $2000 in a single lot. I also aim to have around $5000 cash in my accounts, more than that is a waste, and less puts me at risk of being unable to pay for things.