Ditto. If neither you nor her has confirmed, there's a decent chance she won't be there. So if you just go anyways and hope she's there, what does that say about how valuable your time is? I realize a lot of guys do this to appear "aloof" but in my opinion it just shows you're dysfunctional and immature more than anything else. "She hasn't said anything, so I won't say anything either... I'm just gonna go, and if she's not there I'll pretend I wasn't there either." Yeah, ok.
I confirm when I make the date. And I leave off by saying "If anything comes up let me know, otherwise I'll just plan to meet you there." And I get a response to that.
Very often they'll confirm with me on the day of.
Bottom line: it is not dysfunctional and immature to expect a woman to manage her own calendar. If you're important enough she will set her own reminders to make sure she's there. And you want a woman thinking "damn, he doesn't think he has to confirm, he must never get flaked on."
EDIT: Also, life is difficult enough. Do you really want to get involved with someone in any capacity where you not only have to keep track of your appointments and manage your calendar, but you have to remind her of her social commitments as well? It may seem benign to begin with, but stop making excuses for women. They have power, agency, and accountability, and can take care of themselves,
when it matters to them. If you let them off the hook by coddling them before dates, it will only get worse.