I didn't know what "spend less than you earn, invest the difference, develop some self-sufficiency" meant 15-20 or so years ago though, they were just words. I didn't know what a 401(k) was, I didn't know what an IRA was, I didn't know what a brokerage account was, I didn't know what a mutual fund was, I didn't know what an ETF was, I didn't know what "equity" meant, I only had a vague idea of what investments were, I didn't even know what the stock market was other than "its something to do with money."

Plus that advise isn't applicable to everyone. A college student doesn't have the same finances as a dual income couple in their 30s with two kids. Someone with a $70k income has much different prorities than someone with a $30k income. I think finances is a journey, not a destination.

I think one of the first tenets of financial freedom/independence is figuring out life priorities, not everyone is going to have the same spending because everyone really enjoys different things. Oftentimes people don't even know what they really enjoy and where their spending brings them most life satisfaction so it requires a lot of self reflection and communication/negotiation with family members and maybe questioning cultural norms and expectations. I don't think that financial independence/frugality should about hording money so much as it should be about making your money work for you in the most optimal way possible.

There's also nuances to discussions about money like how it affects interpersonal relationships (and not just romantic ones) and the psychological aspects of money and spending.

You have a good point about him "know[ing] his audience" though, so thank you for pointing that out.