I’ll always need your help
Another thing parents feel they miss out on if they don’t become grandparents is a lifetime of opportunities to be there for their children. Your parents were probably looking forward to all of the times they thought you would reach out to them for advice and help on parenting. They wanted you to take on a tremendous responsibility they’re already experts at so that you’d call them regularly with questions, and frequently need their help. They just want to feel needed. Let them know that they’ll always be needed, meaning you will always turn to them for guidance, no matter what.