One benefit of aging: You can shop for cat food and not feel self-conscious about bobbing your head in time to the Wings tune, "Goodnight Tonight," as it plays over the store's speakers. At least, that was my experience recently. I drew the line at singing along, however. My singing range is too limited for that, and I still have some degree of dignity.
Sometimes, it's best to split the difference between being carefree and careful.