When does a person born on February 29 celebrate their birthday in a non-leap year?
Cecil Adams on When do leap-day babies celebrate their birthdays?
Gee, thanks for the expedition into astronomical theory and sidereal time, Uncle Cecil. Now, on to what they do …
My college roommate was born on February 29, 1968. He always celebrated his birthday on 2/28. Why wait an extra day?
But man, did we have a party in 1988 … When you only get a ‘real’ birthday one year in four, the birthdays are pretty special. (His girlfriend got him a teddy bear for a birthday present. She said that everyone should get a teddy bear on their fifth birthday. 
)
[flashback]
A friend of mine had his birthday on Feb 29th, and he walked into English calass back in 1996 and called out:
“YES! I’m FOUR! -I can drive!”
It was pretty funny
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My 7 1/2 year old husband celebrates (during non-leap years) on both the 28 and the 1st of March. How lucky is that? I have to buy him two gifts.
It goes without saying, but anybody can celebrate their birthday any day they choose; there’s no law against it.
We’re trying to talk my nephew, born on Dec 26th, into celebrating his birthday in mid-June. That way he can have a party without all the Christmas baggage…
The accurate way to phrase it in these cases is not, “I’m X years old” but to say, “This is my Xth Birthday!”.