Imagine how well it would be received if you said "My grandfather clock has a date display- except it's manual, you have to twist a little knob once a day to keep it correct."

That's how I feel about wall calendars.

You can build a habit of doing it every morning, like brushing your teeth. The physical act of fixing the date every day can help ground you and slow down the passage of days.

Hm. Maybe so, interesting thought.