If better safe than sorry, why not better more safe, (less) sorry? Contraception is the responsibility of both parties, to be sure, but just because I believe I'll use a condom without failure every time I have sex doesn't mean using hormonal birth control is unwise or unnecessary.

I hate the entire experience of getting my period. As an adult I've still had occasions where it came unexpectedly or unusually heavily and at least once ruined my jeans while in a public place because of that. Embarrassing, inconvenient, and not to mention losing the jeans - not very economic. I also used to get hormonal migraines as a PMS. symptom and my BC helps mitigate those.

There's lots of reasons to be on birth control even if you're certain you'll use a condom every time. I think it's more responsible for both partners to own and manage their BC and I see hormonal BC as my way of doing that.

If you have a bad reaction to the medication or in general are anti-medicine then don't take it - but if you would agree with taking daily medicine for other reasons, then how's BC different?