Indeed, loafers typically live in the category of summer shoes, along with other casually-acceptable styles, such as boat shoes, espadrilles, and driving moccasins
For festive seasons, vibrant hues like fuschia pink, bright yellow, and tangerine are popular
Get ready to swirl this thing around and poof
[just to add to the comment about the style of the shoe being key, even within the sub-category of penny loafer] Not to make you feel old, indeed were all headed down the same path but my father, now in his 80s, has also never worn a pair of jeans and I appreciate the associations you have with them
I have a M1936 (roll collar but no pockets) uniform worn by an aide and the M1937 (upper & lower pocket flaps, but no exterior patch pockets) mounted uniform worn by a CAC colonel up until his retirement in 1941