How old were you the first time you saved 100K USD?
It can be hard to save 100k.
When I was 28, I was offered 100k as a stay bonus to stay at my current job working with start-ups, rather than join a start-up that offered to pay me 90k a year.
I turned down the 100k. I was already 28. It was time to get on the start-up journey.