How to convince my parent to let me get a motorcycle?

My name is Richie, I m 14 and I m a freshmen. I started driving a motorcycle at the age of 10 and bought one at the age of 12 (Honda PCX125). My dad is always worried about me and he s one of those strict a** parents that are mean as crap. But that was all in Cambodia haha, Anyways we came back to Seattle, Washington, USA and it s been a year and a half since I ve been here. I ve been thinking about motorcycle laws in Washington and been doing a lot of research BUT THEN SOMETHING SNAPPED! I was reading what you need a license for on a motorcycle and ALMOST All said you need a license but ONE… And it said "2-wheel motorcycle or scooter that:
Is 50cc or smaller
and
Has a maximum speed of 30 mph
Don’t need an endorsement". And a couple of months ago my dad was gonna let me drive his 50cc scooter to school. He s idk "scared" because sport bikes look dangerous and all of those bs since the 50cc I want is a sport style. He s bringing up a lot of stuff that I can write a essay about and If I were to say somethings back, he d get so pissed and mad that my mom yells at me. I ve been on a 2 wheels for over 8 years and is way to good at balancing. I just want my parents or mainly dad to know how I feel about motorcycle and understand my love for it and it s not dangerous. Please help, I'm not gonna keep asking my 89 years old grandpa to wake up at 5 and bring me to school cause he's just too old. I need a good persuasive speech and or list on why he should let me buy one. Thanks

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