I don't think "who cares" is a particularly relevant question. We all get a finite amount of time to live on this earth, and a much more inspiring and relevant question is what kind of life experience do you want to have? Choice allows for life to be lived anything from miserable survival to joyful fulfilment. There are many options, but the choice is ours.
P.S. Nice pic - my Dad has a small collection of restored Johnny poppers, so I have fond childhood memories of him with him sitting in the driver's seat with a big grin on his face as he'd drive them in circles around the barn.