Hi I'm 14.5 I'd like to get a macbook pro 13 touchbar 256 16gb with all the bells and whistles though my parents don't want to buy me one , so I've settled on a compromise I'd buy a MacBook air now of my personal savings use it for 18 to 24 months and save up literally every cent I get from my parents to hopefully buy a pro in 2020 , is this a viable idea?