Question for "bicurious" women

Schwa • 22/Washington State. Ask me about birth control.
I mean no disrespect by this, but I've been wondering for a while. 
I see women on this forum post a lot about how they have/would sleep with another woman but never date one. As someone who has dated both men and women I don't really get the mindset behind this, so I was wondering if anyone had thoughts or experiences with it!