Let's see here.
If Trump urges action earlier to the public/population, and to local and state governments, we probably have a shutdown earlier and not have to have it dragged out as long as it needs to be. The downside is, the death count will be lower so people like you will complain we should have never shutdown to begin with. The upside is, playing it safer earlier, would allow us to get back to business sooner. Trump was only prolonging the inevitable. As was Kemp and DeSantis. And don't be surprised when FL and GA both have a spike due to inaction by both Governors.
And again, Trump constantly going on TV and contradicting the doctors and experts for weeks, and continuously crying foul about the Flu and not shutting downt he country over the flu, is a reason things have dragged and dragged. The country isn't on the same page. This disease doesn't stop at state lines and say oh you have a stay at home order in New York, so I can't tip toe over that line.
With people staying home, the need for masks isn't as high, and the masks can get to the hospital workers on the frontlines. I'm sure you have seen plenty of videos on twitter of healthcare workers having to make makeshift masks and uniforms just to keep going to work.
If the CDC says buy masks, masks will all be gone. They were already being price gauged on amazon in February because people already were hoarding them then. You see what happens when someone makes up a rumor about toilet paper and toilet paper is all sold out everywhere.
Again, practicality and human psychology. Things I think you just cannot wrap your head around.