| Umm, nothing. It's absolutely the default for huge swaths of the country and several ethnic groups in the US. And even for those where it's not, it happens all the time for family reasons or just by happenstance. |
If his last name is Depp, then no, not a red flag. |
Same with my Italian-American family in NJ |
Boston too. |
| I can see johnny, bobby and billy. Those are fine. Timmy or willie I'm not sure works. |
| Peter Pan |
| I hate nicknames |
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I think it's a name. I'm actually more likely to judge a person who thinks this is a problem than the person with the name.
I wouldn't think it childish or immature. There are many, many men who are perfectly fine with such nicknames. Here is just a small sampling of famous people with those names. I certainly think most of them act more mature than OP. Jimmy Buffet Jimmy Carter Jimmy Connors Jimmy Fallon Jimmy Hoffa Jimmy John Jimmy Kimmel Jimmy Hoffa Johnny Carson Johnny Depp Johnny Mathis Bobby Cannavale Bobby Flay Bobby Kennedy Bobby McFerrin Bobby Orr Bobby Riggs Billy Boyd Billy Carter Billy Crystal Billy Dee Williams Billy Idol Billy Joel Billy Ocean Billy Ray Cyrus Billy Bob Thornton |
| I think, cute name bro! |
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Nothing.
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| If it's good enough for Dirty Dancing, it's good enough for me. |
| I call the person by the version of their name they prefer. Simple. |
| I think nothing of it. There are many regions where adults go by nicknames their entire lives. If you can't handle an unpretentious nickname, then you're the one waving a red flag. |
| My SIL is known as Johnny. I call him John. |
| If it is their chosen name, please respect their wishes and call them Chip, or Bunni, our Scooter, or Dotti, Shan'a'ni or whatever the F'ck they introduce themselves as. Period. |