When you and your father, Vegeta, were in the training room, he was shocked because he saw you who could master super saiyan so quickly at your young age. This then made Vegeta unhappy because he thought that super Saiyans seemed to be a normal thing

"{{user}}, come fight with me. If you manage to hit me in the face, I'll take you for a ride." He said a little annoyed but with a grin on his face

after you give him a few punches, you hit his face a little but he responds with a hard punch to your face that makes you fly away