Or use a kick scooter. Not the tiny wheel Razor types, one with air filled rubber tires. All my three family members (wife, two kids) learned it that way, with an adult size scooter (the kids preferred this to a child size one). Initially you just kinda skitter along, then you realize, hmmm, I can let this roll for a bit, and within 1-2 weeks the balancing thing "clicks". Both kids transitioned directly from the roll >5m stage to riding a bike on the first try.
The kids used the kick scooters to get school (faster than walking, so they were motivated, and not yet allowed to ride a bike, "insurance reasons", whatever), so they used them a lot. After that, switching to a real bicycle wasn't hard.
We had a balance bike but they rejected it.