How so? Other than a funny coincidence, how would that ever come up anywhere in anything unless you both lived in a tiny community where everyone knows each other. I just don't understand how someone born on the same day as you having the same name was "irritating".
Allegedly Jr. had a lengthy record including some drug offenses and something like a DUI / DWI. Naturally Sr. And Jr's records got crossed since they have the same First, Last, and Address, which caused Sr. many headaches including that we required a driving record check that would fail on a DUI / DWI.
Because, lacking a national identity number, the natural way to distinguish to people in a system when the name wouldn’t do is going to be age/birthdate or location.
I've also met two others with the same name, purely coincidentally, not related. I worked on an access/security software team at a major bank (about 350k employees internationally at the time), I found 3 bugs just by being me. Since even SSN/Tax-Id varied, there were several ways to match identity and I had conflicts in a couple of them with other employees. Last Name + last-4 of tax/ssn/national-id (for whatever country the employee was in) was one of them. I don't recall the other two right now, been about 15 years.
Glad to see that after five years post abandoning it my contribution to the name is basically gone from the internet now.