I am a healthy and active 73 year old who got a puppy three years ago. I have said many times, what was I thinking? I also have an older dog and that has helped. I walk 3 miles every day and have no problem now but I worry about 10 years down the road and he will be 13 by then. Please tell her to reconsider and think about the fact that if the dog lives to be 15, she will be 96! I worry about being 85 and not being able to walk 3 miles a day.