Why?

[solagirl.livejournal.com]

Apparently adding a Y to a boy's name DOES make a girl's name. I met a woman (probably 40 year old) whose given name was Brandy. She insisted on being called Brandon. (Pronounced Bran- DAWN). Later I saw that she spells it Brandyn. ???

Also:  In the last week I've met two two women with honest to god men's names - Michael and Clyde. The former was 30ish, the latter 60ish.