but after you have shown him that you can ride a bike dad should let you take out his $1300 bike
I see. Let me put a different spin on it.
You have a fancy Porsche in your garage that you've spent years dreaming about and working hard to be able to afford.
Sure your sixteen year old can drive well, and even though they have a POS Honda in the garage waiting for them to get their license, the day they get their license, they couldn't care less about the Honda. They want to get a crack at the Porsche!!! What now?
I'm sorry, but the day my kid learns to ride their bike without training wheels, they should be very happy to tool around the neighborhood with their little bike. Simply for the excitement of not needed training wheels anymore. If they are not, that is indicative of a whole different set of issues.
As I've said, in my residency they never gave me that freedom of no training wheels because all of the cases were their private patients. I understood this and really respected the fact that they let me do anything on these people that were in the OR trusting THEM.