I say sit down, talk to them about it, then go with your gut instinct. A golden pup has a lot of energy and needs a lot of exercise. They use to heve a pup, but that was a long time ago, when they were younger. You said it was what, 15 years ago? Think about it, if they are 60 now then they were in their 40's then. A 40 year old can handle a pup a lot easier than a 60 year old. Mabey they haven't even thought about that. They might not even remember. So, talk to them, then do what you think is right. Don't worry, you know what you're doing! Good Luck, Little Lady :)
IMHO, you can give a dog to a 20/30 year old couple and there is no guarentee they will care for the dog correctly. There is also no guarentee that they (one the other or both) will live a long happy life. Anyone could pass away at any age.
I'm sure when you sell to a younger couple, you don't look at them an think gee what if he/she has a brain tumor. Or what if they leave today and get in a car accident and can't take care of the dog.
I recently (I know I have a story for everything!) had an elderly couple call about a cairn. He is legally blind and hard of hearing. SHe is in great condition and drove the 6 hour round trip. When they called I cautioned them about the energy level of a cairn and they said they just parted with their much larger Soft Coated Wheaten that was very hyper. So I invited them over and they just fell in love with my energetic dogs. I was so worried that he would trip over them, but instead keeps telling me he's taking one of mine home with him. Glad I gave them the benefit of the doubt there.
In this day and age, I find that many elderly people have an idea of their pets placement and make it known in either a will or to family ahead of time. Any of us can go suddenly and most of us do not make those plans, as we are not elderly. My great aunt who is 90, has a schnauzer and has only had schnauzers-no children and has been widowed for years. She has expressed and expressed to us, that when she goes, she's like us to have Chipper put down. I believe that dogs go to heaven, but with my family of animal lovers, I know we could provide a great home for her, but my aunt believes that no one will love and dedicate 24 hours a day to Chipper, and we have to respect that.
OOps...I mean no disrespect but reading this I feel like I'm ready for a nursing home.....I'm 57 and my hubby is almost 74. We have 6 collies a springer spaniel a schnauzer and just took in a stray that is about 8 months old. We have a provison in our will for all and any dogs we have in case something happens to us to go to a dog sanctuary and or rescue. Most people these days over 60 have more energy than those younger. I hope you find it in your heart to give them a dog as it will keep them active.