Oh and Ringo I forgot to say thank you for being able to keep an open mind and having the ability to change your opinion. Another good asset to posses.
This is something that you have issues about with your father. As his opinions become judgmental. Which encourages the mind to narrow not allowing the ability to be open to suggestion and/or to different points of view. Thus not giving a way to change them if it is necessary or so then desired. In other words (set in ones ways).