I'm glad this worked for your family, but in my kids' experience this is too heavy to use as balance bike. By the time they were comfortable hoisting their de-pedaled 12" / 5.4kg bike off the ground, they'd nearly outgrown it. They preferred a cheap hand-me-down balance bike which was half the weight (the upscale ones with brakes and pneumatic tires are self-defeatingly heavier).
That way they can learn to use the brakes, and when you put the pedals on, they will quickly learn to cycle it. Took my daughter an afternoon.
[0] e.g. https://us.earlyrider.com/products/belter-14-kids-bike-age-3...