You are very lucky to be in that situation. I experienced almost the same thing. They have more wisdom and life experience than most of your friends parents. I found it interesting because they were not afraid of life as I look back now. They suggested advice but not command ,When I failed they picked me and asked if I learned anything. Enjoy their companionship as long as you can. Life is short.
Having older parents is a blessing not a problem. My mother had me when she was 40. You wouldn't be able to ask this question had they decided not to have you or me and being able for us to interact, right?
What matter is the fact that you have a set of parents who love you - and who are still together to raise you with love. Please, treasure the time you have with your parents. Your parents are a "goldmine" in respects to knowledge and wisdom.
They are your parents - one that should be honored -Ephesians:1-3 "Children, be obedient to YOUR parents in union with [the] Lord, for this is righteous: ?“Honor your father and [your] mother”; which is the first command with a promise: ?“That it may go well with you and you may endure a long time on the earth.”
... I'm 15 and my mom is 43. My dad is 44 and his mom is 60. All families are different. I know a lot of people with older parents. It doesn't really matter if your parents had you at 20 or 40, they're still your parents and they still love you.