In my experience most girls on seeking don't even think about condoms. Different mindset
Ive found it’s about 50/50. Older (wiser?) girls seem less likely to BB in my experience whilst the younger ones have been more likely. I’ve always got condoms with me but do admit to getting carried away occasionally when things have progressed quickly with an SB. A few years back did have a scare with a girl I was seeing condomless got tested and had chlamydia. A course of antibiotics cleared it up and tests showed I was clear of that and any other nasty stuff. Lesson learnt!