In general, it's a good idea to confirm the date on the day, especially if the date was planned a while ago or if there was a gap between the planning and the actual date. Confirming the date ensures that both parties are on the same page and that the plans are still in place.
Life can be unpredictable, and unexpected circumstances might arise, causing someone to forget about the date or make last-minute changes. By confirming the date on the day, you show consideration and respect for the other person's time and effort in making the plans.
It's not about who "should" do it, but rather about maintaining good communication and avoiding misunderstandings. Both parties can take the initiative to confirm the date to ensure a smooth and enjoyable experience for both of them. A simple text or call to confirm the time and location can go a long way in making the date successful.