We will all get old. I'm 58 and feel the same way I felt at 28. For most of us, its all about how you feel mentally. Baring physical problems ( and I now have them) and taking care of those issues, I'm the same person at 58 as I was at 50, and I will continue with the same outlook on life as I get older.
I was racing my Porsche on the track at age 52 and still would be, but my eyesight isn't what is was then. I LOVE life, but we all get old and you deal with it. I miss driving at 140 mph, but know I can't now. My beloved car can, but I can not.
I have always loved geriatics, both humans and canines. I am just that way. An older being is not a problem, its just an adjustment for us to deal with in a loving way. Just know that all of us will be in the same boat sooner or later. You treat people, young or old as you yourself would like to be. Reasonable, works, so does caring. Just remember you will, at some point in your life be there too, old, and hopefully your family and friends and YOU, will understand and adjust accordingly.
The best to all,
Mackie