definitely not!
Speaking from personal experience - I went from totally fucking off (working like 10hrs a week) to working as a carpenter for years. Then I got interested in random shit online and made the leap from carpentry to working in marketing/jack of all trades for tech experiments and companies.
I was 25 when I made the leap from carpentry to what I do now. I had no clue what the fuck was going to happen. I just felt like it was the right leap to make.