I know the feeling man...My dad STILL wont touch any of my snakes..Scared to death. Just be like "Dad, they are NOT hard to keep, not dangerous..Etc" and shoot off your knowledge. When i did it, my parents realized I knew what I was doing, so they let me have one. Good luck!
1.1 Leo - 0.2 Ball Python - 0.1 Beardie - 0.0.1 Rocky Mount. Toad.