parents wont let me buy a bike?

[Dzenan]

hi im 14 and i have a scooter i am riding it for long now and want to buy rs 125 aprilia it is my dream and i just thing about it but my parents wont even hear about it they say its dangerous and think that i like driving fast etc.i really do feel rosponsible enough to drive and know hot to drive a manual transmission and i enjoy wearing helmet and have a suit but there is nooo way to convince them about it do you have any ideas? pleeease