If you're not sure if you want a child, date a single mother. See if you like it, if not, just leave. They're used to being abandoned.
Am I understanding you correctly, you think single mothers must be used to being abandoned because they're single?
That's what I believe. The fact that they are not married to the father of their child means that they must have been abandoned.
Sometimes, people are single because they want to be, not because they were abandoned by the father of their child. People have the right to raise their children the way they want and they don't necessarily need both parents. You shouldn't assume that they're abandoned and alone.
I think she must love to be alone, because most people will leave her in the end
You have no way of knowing why a woman is alone, or what she wants out of life. Her husband could have died young, or could have been abusive toward her, causing her to decide to leave. Don't you think that the fact that she is dating means that she probably wants a stable relationship with someone?