No....this is no ones choice for birth control.
I don't know where or how that "myth" got
started but it's wrong.
It's not a myth. I went to a clinic with a friend of mine and she was on her fourth abortion. Who has said to me that if she got pregnant again, she'd have no problem with getting another abortion, that to her it was just another form of contraception. This was years before the morning after pill.
There are exceptions to every rule. Fortunately the exceptions are a small minority, I don't believe many women make such decisions lightly.