ohh this is the best idea,

im introduce my girl to use bitcoin so i can transfer my money faster and more simple than using bank, but
he not interesting, maybe someday
he will interesting, so today i will only introduce how bitcoin work.
Your boyfriend maybe?

You dont need to teach her any complicated things about bitcoin. Just let her watch herself what you are doing with your bitcoin. Or maybe you could bought her some gift with your bitcoin

It totally depends upon the nature of the women. Also class varies the nature of people. Might be if the girl is rich
she does not want to spend time in bitcoin. If the girl is poor she will be motivated towards earning coin but she should
be explained about bitcoin properly.
Sometimes a rich person want to seek some investments for their money, like bitcoin and gold. In my country, some actresses has joined into bitcoin, so it means bitcoin is for everyone in the world, not only for poor people.