I wasn't aware they ever stopped...
But apparently, the tradition of men giving their sons their first names, is a dying one. Since the 1970s the practice of patronym (fathers naming sons after themselves that has been around for centuries) has started declining. The founder of BabyNames.com simply explains why: "it fell out of style because people wanted their children to have their own identity."
Another reason for the supposedly lack of boys having their father's name according to Today's Parent: "Other reasons for the near extinction of a “Jr.” reflect our evolving social landscape: the decline of extended families, the rise of single motherhood and the most basic fact that a lot of traditional practices have fallen by the wayside."
I'm all for fathers (Happy Father's Day! π) naming their sons after themselves in the same way I'm all for mothers doing so too. My own father (RIP) named my brother after him and I always thought that was really great. I can't see my father or brother named as anything other than Harvey.
That being said, I also respect the more creative route a father can take in naming his son other than his own name. I knew a father whose name is Justin who named his son cutely: Austin. To each his own. π€·πΎ♀️
Despite what onomastic experts say, I don't think the tradition of a man naming his son his first name is going anywhere anytime soon. Patronymics is a fundamental parental practice that really shouldn't.
ππReddit AskMen π€ Community Thread: "Men who have named sons after themselves: why did you do it?"