Perspective

Is the glass half empty or is it half full? It depends on your perspective.
Is rain dreary, or invigorating, or just there? It also depends on your perspective.
Are you trapped at  home during the "shelter in place" restrictions, or are you "safe" at home
protecting yourself and others from illness? in depends on your perspective.

It also depends on your personality and your principles. If you are an extrovert you are probably going crazy not being able to go to all the places you normally want to go. Why? Because you draw your energy from people and parties, and this current situation leaves you frustrated and physically drained. If you are an introvert like me you are probably enjoying the peace and quiet and less of the hustle and bustle, since you recharge in silence and calm.

It also depends on your principles and beliefs. If you tend to be skeptical of "official" sources and rely on "word of mouth" sources you might think that the danger is not as bad as people think. And if you think it is over-hyped you may struggle against the restrictions. If you believe that the danger is real and trust experts you be more likely to "wait it out" and give the restrictions the benefit of the doubt.

Many people can view the exact set of circumstances and situations and come to very different conclusions. At the same time we all need to be careful in our actions. Taking care of ourselves and others is important no matter our conclusions. Helping struggling and hurting people, and allaying fear is never wrong.  And we must always remember that any of us can be wrong, and be prepared to admit it.

For me, I tend to emphasize exercising an abundance of caution, and being an introvert, am content to wait it out. There are plenty of things I can do from the comfort of my home.
I am a rain lover, so I walk in the rain, get invigorated by it, and love the windy, rainy, coolness of the local rain climate. I spent enough time in the blazing desert heat of Phoenix  I will never get waterlogged, no matter how long it rains.

And as for the water glass question I take the middle ground. Forget debating the existential notions and just drink the water.