RUNBIKE - a transport of future?

This is a runbike of my son. He is only 2 nut I think its time to start to use it.

Why did we choose runbike but not 3-wheels bike like other parents?

You know, I was studying this case carefully and long and I found a lot of information about super advantages of a runbike:

 - it teaches a baby to hold balance

 - it develops his vestibular apparatus

 - helps to teach moving on a 2-wheels bike

 - develops legs muscles and spine

 - helps to be study many interesting tricks

I was surprised but my baby fell in love with it at once! Now it's our favourite toy and transport! 

Are runbikes popular in your country, friends??