Hm, I can say that I am 15 and I dont have a cellphone, although all of my friends do. It is a major inconvenience for me as im usually always out, lol. Its to bad that my parents wouldnt agree to buy me a phone until I can pay the bill myself.
your parrents are doing the right thing. Its good for you. I had to by everything myself. I had stricked parents that believe you were only entitled to Food, Shelter and an Education. I was working odd jobs, and mowing lawns every week at age 11. I bought my first car at 14. a year younger than you. I paid $250 for it and it was a oldmobile Delta 88. 4 tons of the finest steel Detroit ever rolled out. i coundt drive it for two years, but it was still mine. my dad wasnt happy about it, but it was mine. my point is get a job, become self relient, and get your own phone and pay your own bills, you will be a better off in the long run.
My sister always thought our parents were too hard on us. she gives her kids everything they want and lets them do whatever they want. they dont respect her, and they are always in trouble. he oldest boy got an Iphone of his 15th birthday a couple of years ago, the next month she had a bill for $1100 dollars, he was texting his girl friend, who was on vacation with her mom in thailand! he will be graduating next year, and wont be going to collage because his grades suck and he can't get a scollarship or grant. they can't afford to pay for him to go to collage, so he is looking having to get an entry level job, and he probably will never make it to collage.
so your parrents are doing the right thing. you will thank them latter on in life, even it it sucks right now.