one thing i just wanted to add this is my opinion since i am 18 also you shouldnt have to convince your parents to let you get a dog i told my mother im getting a yorkie puppy and she said ok ..not because im spoiled...but because she knew i was very responsible and i could care for him and i was 16 as now im getting a puppy and i dont have to ask or beg cause she knows i spend 2million % of my time and money on brownie as i will with my new one good luck
this is my own opinion