Millennial def raised by the internet here. I used to be on the computer non-stop until my parents got home from work. Then I would weasel my way into more computer time after dinner too. All to work on my Angelfire hosted website that definitely never got any traffic.
I, too, have turned 40
Same boat. I didn't really have good internet until I was in my teens anyway, living the 14.4kbps and 28.8kbps split between 3 brothers life.