For real. I've seen kids years younger than when I started pedaling scurrying around on these, and it instantly clicked why it's a much better way to learn to stay upright on two wheels.
I wish my first bike had been something like that. Training wheels stop a bike from leaning into turns, so they don't teach you anything about what it is like to ride without them.
When I was learning to ride, my dad bent mt training wheels up so the bike would still turn and the wheels would only touch if you started to fall over a fair way.
Strider wasn't the first to come up with balance bikes for kids specifically, they have been around for decades and balance bikes themselves, for a few hundred years.
Fwiw these days balance bikes are considered better than training wheels for people learning to ride. Training wheels are ok if you actually need to go somewhere accompanied by an adult on a bike, but they’re terrible for learning. They don’t teach you how to steer or balance properly; a balance bike does. In fact, training wheels can teach bad habits that are difficult to unlearn.