> So women will use BC in both phases because it's the path of least resistance. I could see it from womens point of view as you can't always trust the other p

> So women will use BC in both phases because it's the path of least resistance. I could see it from womens point of view as you can't always trust the other party (someone you just met) that they are indeed "on the gel", and you are the one getting pregnant if it's not the case. This might be the big/determinant factor, but apart from that it's definitely not "least resistance" when factoring in side effects. It's tradition, but it doesn't have to be. Condoms for STDs will always have a place, I agree.