Like many with depression-era parents, being thrifty was instilled in all 6 of us kids. Mom was an immigrant with an 8th grade education, and dad was orphaned as a teen who got to college after WW II on the GI bill, so education was highly stressed (though I knew from a young age that I had to pay for college myself). Hard work and self-reliance.
Funny reading some of the above responses, there was never anything about laughter, fun, travel, or seizing the day. I think that is very telling and we were a serious bunch.
My dad never did any investing, put his money in T-bills, so I had to learn that by myself. I did make all my kids open Roth IRAs when they started working in HS, and helped them fund the max they could based on their earnings. They were also taught to never put anything on a credit card that they couldn't pay off at the end of the month.