Agha Sahib of The Kite Runner

I'm on page 142 right now and I chose Agha Sahib as the most important character in the whole book. Personally, I think he changed the entire track of his son, Amir. He changed everything that was naturally inside Amir's mind. He didn't treat Amir well when Amir was young and that cause Amir wanting to draw his father's attention. Or else he wouldn't try that hard in the kite fighting and left Hassan alone. He wanted his Baba to be his own Baba. He saw his Baba taking Hassan and Ali highly in his mind and then he decided to make a trick and kicked Hassan away. He would be very good friend with Hassan if Sahib'd not treat him that way. He always sacrificed for his father, such as Hassan's behavior to him, but his Baba always wanted him to change his mind and give up his writting thing. I don't think it's a good way for parents to do that. That's a torture to the kids. And in my opinion, Sahib controlled his son's life and Amir was like a toy playing what his father let him do.