I think that my answer here is pretty nuanced, and it is that most people I talk to should over the majority of their lives be using something like Wealthfront or a Vanguard target date retirement fund, but I also talk to folks who have quirky life circumstances as a function of how the technology industry works, and those folks would potentially benefit materially from IB.

Here's about as much as I can say publicly before I start getting worried about social dynamics: if you will, at some point in the next 20 years, own millions of dollars of stock as a function of your employment, you should be radically more interested in Interactive Brokers than a similarly situated technologist who does not have some of the needs implied by that.