Harpo

Various reasons, but generally because it's possible.
By the time of my first name change I'd lived in 8 different towns, changing is what I'm used to.
Change is a good thing, and some people change more than others.

Alexa

Looks like you live a dangerous life.

__________________
"Dare to live the life you have dreamed for yourself. Go forward and make your dreams come true" (R.W. Emerson)

Harpo

not physically dangerous, more like episodic
we each get a life to live, so why not try a bit of everything?
(with certain exceptions, obviously)

fitnessk

I can't imagine changing my names many times. Although I have considered changing my name to something totally new because I do not really like my given name. But this isn't something I'd be likely to actually do.

manephelien

If and when I marry my bf, I'll change my name to his. Not that I have anything against my own, but I find it'll be simpler to have the same name if we're married. My sister will probably keep hers if and when she marries, because she's a scientist and is writing her Ph. D. thesis, and already has some publications to her name.

lovemyabba

I took my husband's name when we married, gladly. If we were ever to divorce, I would want to keep my husband's name, in order to have the same last name as my children. If I got re-married, I would take my new husband's name.

trick-r-treat

I changed my name through marriage once and changed it back again when I divorced.

lilyflower_1978

I was glad to change my last name when I married. Went from a twelve letter last name to a six letter name. We are having some marital issues and if it ends up in divorce I'm leaning towards keeping it until or if I marry again.

SageMother

It seems easier for all parties, to hyphenate the last name. That wasy everyone changes!

RoxyMoron

Name changes could be good for a persona change too, if someone is embarrassed about their past life and want to start over.
I have considered sticking to the norm if I got married because my last name is a tongue twister, but now I've decided I'd probably do the hyphenated version of both (even though I kind of don't like the idea, too long) because then it'd be easier for long lost friends and family to find me!