This is one of the worst things that can ever happen, anywhere. No one likes change. No one likes when the quiet library gets noisy and they don't like when the noisy jungle gets quiet.
Change is a symptom is discontent. Either the universe is dissatisfied with existence, or God is pissed off; either way, changing times means this game of musical chairs is going to leave someone without a seat at life's table.
Some changes are actually good, once we adjust. But there is never any guarantee that change won't kill us all. Climate change on the planet is not good for humans. And climate change in the library means I need to find a safe place to keep my shawl.
Sometime there are small changes we can appreciate, like fresh flowers on the information desk. Or fresh toner in the copier. Or a spritz of air freshener in the restrooms. These are good changes, but they are few.
So the message to libraries is, don't change. We love you the way you are now. If now were 1949.