I think it depends on whether you are spiritual or stupid at 40?
If you are not stupid, I think you can learn any dance, because 40 years old is not big, some people are still dancing in their seventies and eighties, so 40 years old is also the most mature age to learn dance. That's why you can learn anything besides square dancing, you can learn three and four step ballroom dancing, and you can learn wheel barre and so on.
In short, you 40-year-old woman can learn anything. If you learn to dance now trapeze can also be good. Why don't you renew your youth to learn more dances.
If you also agree with me, please give the adoption, thank you.