Steve Jobs was 50 when Apple startd working on the Iphone and 52 when the first one was launched.
He wasn't representative for people his age though. However, gotta admit my reply about
BTC being a millennial thing was kind of a broad statement; everyone born between roughly 1980 and 2000 is apparently a millennial. The people I know who invested significantly in BTC are all - without exceptions - above age 30. (I'm 32 myself but too cautious to invest heavily btw)