There are no regrets, just experiences. The experience of losing a parent when you’re a child or loss of a child at any time is an experience full of regret, however it too does pass with time.
What must it be like to go through life without loss or regrets? To get old and the only thing that goes away is finally… your energy.
What a shock that much be. With nothing to compare to. This one does not get better with time. This one seems final.