Bikes, as in bicycles.
Got my first one around 4 years old. A trike naturally which I rode around our basement. I don't remember this, but the folks said they had to push on my legs one at a time to get me to realize you had to "pump" as they called it. Guess I was just un-cordinated.
A year or so later I graduated to a 2-wheeler with training wheels. The first ride without them was plenty scary but I did OK - except when I stopped and had to get back on and set off on my own. That was shaky but I didn't fall over. Recall finding a curb to get back on.
Age 10 or so I inherited the Huffy fat tire cruiser from my cousin. It was a large bike, very heavy, one speed. OK on level surfaces but killer on uphill grades. Including and especially for a 10-yr old. I struggled with it.
Few yrs later the folks bought me a shiny new Schwinn 3-speed. Now we're talkin! Relatively light and the 3 speeds were all I needed. Rode that all the way until I was old enough to get my driver's license. Maintained it myself too, but frankly it didn't really need much maintenance.
Somewhere along the way 12-speeds became the new thing. Never could understand why anyone would want 12-speeds when 3 did just fine. Plus I hated the seating position and handlebars on the 12-speeds I tried.
I retained the Schwinn for a while after HS and rode it occasionally around the area I was now living. But a car was better, faster, and easier. Must have sold it but don't remember.
Years after that my Pap got a 12-speed with his new car purchase. He gave the 12-speed to me and I tried to like it, but again the seat and the handlebar position proved much to uncomfortable. That didn't last too long.
Now that I'm retired I've thought about getting in a 3-wheel recumbent bike. The one that I tried out was a nice one. It had a comfortable seat with back support, one wheel in front and 2 in back. Lightweight and maneuverable. Problem was the price, which after the necessary add-on's brought it up to around $1500. And while that amount may not be a deal breaker to some, now that I'm on a fixed income I need to look at that kind of expenditure carefully and weigh out how much I would actually use it. Right now it's been put on the back burner.
Cheers,
RR