Exactly. That is what my own mother told me when I told her we didnt think we wanted kids. She is a registered nurse and for awhile when we kids were in grammar school, she took a job in a nursing home on the night shift so one parent could always be home with us kids.
She said that 'having someone to care for you in your old age'...there is absolutely no guarantee they will, they have no 'obligation' to do so and many do not. She also said that is a very selfish reason to have kids....to 'grow your own caretakers.'