I liked trains as a kid. There was a picture of me about age 3 in striped overalls and cap. I also have a pic of me and my brothers on the steps of a NYC switch loco. Lionel was something we got out occasionally, and built layouts on the attic floor. As for modeling, my brother got me started with car models, though I always had a passing interest in trains. I remember borrowing my friend’s MR magazines, and generally finding trains of interest.
As a young adult, trains again found their way into my attention. I married the daughter of a lifelong LIRR man. Co-workers had an interest and kinda sparked it in me. When my kids were very young, I had no time for hobbies, but when they were both over age 5, I decided to start a layout. My son showed an interest, too. So I built the original 5’x11’ benchwork. That moved to a new house and was expanded to a 20x20 L. Thirty years later (2020), I scrapped the addition and again moved the 5x11. I’ve converted it to DCC and am building additions. And as a side note, my son now is a civil engineer and works in a government rail agency - and has lots of HO equipment that says Amtrak on it.
Now the disclaimer: my first interest is in bicycling, especially cycle touring. But model railroading runs a pretty close second. That means you’ll find bike trails and scale bikes on my layout.