This is what Midjourney v1.4 thinks a "50-year-old man wearing a dr pepper t-shirt" looks like.
@pwinn A 50-year old?!
maybe after working in the mines for the past 40 years?!
Only the 2nd one seems to be around that age. The rest seems to be nearer 70!
@pwinn I think THEIR expecations of age are dramatically different. ;)