I started at about 10 (1974), while living with my mum. I built tanks, planes, ships, all without paint but the decals looked OK. This lasted till 1976 when I started work/college and discovered girls and beer. I recall the day thay my bedroom turned from a workshop into a bachelor pad with, custom paint job, stereo, TV etc. All of my models were sent to the bin.
I started back a couple of years ago,16 years married, 2 good sons with no major problems, when I built a large shed/workshop in the garden and I needed something to do instead of watching TV, lounging about and going out with the lads for pool/darts nights and risking a drink driving charge every morning.
My wife thinks I am boring, but I enjoy what I do and it doesn`t harm anything. Now I buy kits on impulse and build anything that looks interesting.