I don't really understand what you think the difference is between "dating" and "having fun", but I don't think I am in a position to decide what exactly I want right now. I just know I don't want to have a long string of lovers, and I don't want a boyfriend in the traditional sense. I don't want to have anyone hanging around to the point where they think they might be meeting my kid... I have a lot to worry about right now with her health issues, which are quite significant. She will be hospitalized in January for 3-5 days for specialized testing, and I don't have the interest, time or energy for another thing to worry about.
I did meet someone about a month ago (six weeks?) who has been quite persistent, but I don't know... He's tall, dark, handsome, a former body builder, and has incredibly good manners, and is extremely thoughtful. But he's too young for me, and I am trying to decide if I care. Plus, I was a little bit put-off when he hinted at a bit of jealousy over my private dance lesson.
As for how long before I would sleep with someone.... well, I don't have the same agenda as a young woman who wants to start a family or find the love of their life, so I haven't established a rule for myself, other than when I feel comfortable.