Everyone needs to be completely on board with the idea, I also felt that way when I was 12 yrs old, I wanted my own dog soooooo badly, you can't persuade someone who doesn't want one, and doing so may just upset the situation. I finally got my own dog when I was 17 yrs old, it was alot of work taking care of a puppy, but I was ready, and able to spend the time that it took to train her etc. I think your dad will know when it's the right time for your family to get a dog.
That is strange my daddy is not a fan of dogs either, but what i did was show him how responsible i was by taking care of my hamster and other dog....and chores or something so he will know that you are responsible and take care of things....i hoped this helped good luck
Maybe he is worried about the cost of buying one- which going to a rescue or shelter may be a good solution. Often these dogs are current on shots and have been spayed or neutered.
Or is he afraid that as you grow older you may not want to be responsible for the dog. That is common with teenagers even if they love their dog very much. Teenagers like to be with friends when not in school.
Sadly my dad said the same thing when I was younger once our other dogs had died. He was afraid because both he and my mom worked a lot of hours (and I was a teen) that the dog would be home alone too much. He thought that would be mean to do to a dog. Now that I own 2 dogs myself I have to agree. Dogs really do love being with the family. For them to be alone too many hours is not healthy for the dog.
i had the same problem! i had wanted a puppy 4ever, but my dad thought it was to much resposibility for me to handle.(just about a month ago i got my adorable cocker spaniel puppy!)so i desided to prove to him that i really was reponsible. here are some ways to do this: first of all keep your room clean, that should really impress him, keep up with your school work, get good grades, respect him (this includes no backtalk!),spend time together, and do lots of reserch on adopting a dog.