Im kind of surprised Im still alive really.
I started with electronics early, I dont remember what age, but it was the early 90's, so I was under 10. Mostly it started with pulling old appliances apart to see what was in them. I built a few kits that sometimes worked, and did a bit of soldering, too.
As for still being alive, as part of my curiosity I did all kinds of silly things with mains voltage. I stuck knives in toasters while they were on (and got shocked), tried to cut through cables with metal scissors (and got shocked), used screwdrivers on live wires (and got shocked). I think about the only thing I didnt do was use a hair drier in the bathtub.

But I lived on a farm (in Australia) and access to materials beyond the odd appliance from the "local" repair shop to pull to bits, datasheets, and people who knew about all of this stuff to help me understand it properly were few and far between or difficult to get.
When I started high school I was introduced to QBASIC by a new friend, and since I had a computer with QBASIC at home, that kind of became my new hobby. Some time in the early 2000's my interests shifted to telecommunications and I started working as a network engineer.
Now I live in the UK, and with Internet access as ready as it is in general, and electronics suppliers in no short supply, I am getting back in to electronics and really enjoying it. Ive learned so much over the past year just practicing and playing, breaking things, making things etc. Im in my mid 30's now, so theres been a good 20 year gap between when I played around with it all as a kid and when it has become a real consume-all-of-my-spare-time hobby. Its great, and I love it. Sometimes I wonder if I could turn it in to my day job, but maybe I should keep this one purely as a hobby.