After a divorce, is it right for the ex wife to continue using your name?

[STEEL]

NO. I DON'T THINK IT'S RIGHT.
My mother and my father got divorced 20 years ago and she still uses the same last name. I'm not sure why, since my father has re-married and since my mother has been with the same guy for the last 18 years. If I were my mother's "common law husband" I would be a little ticked as to why she kept her ex husband's last name. But I think she did it just to spite my father and stick it to his new wife. Even though my mother is the one who left my dad, she's still bitter over the fact that he moved on. So again, to answer your question, no I don't think it's right. What could possibly be the point?

Okay, just read some of the other answers and I guess it makes sense if there are small children involved who don't understand why mommy's last name is different from theirs. And I suppose it makes sense when you're at the school or at the doctors office. But if there aren't any kids involved? Or if they're adults? Then I stand by my previous answer.