I don't think there is that much evidence of people directly contracting the virus as a result of the virus. [EDIT: WT*... I mean as a result of Amtrak. sheesh.] The thing is, its all a matter of spectrum. If I have MREs delivered to my porch, let them sit outside for 48 hours, and eat only that, risk the unpotable tap water in my sink, and stay inside my house, and treat my mail to its own 2-day quarantine with gloves and masks, I can nearly guarantee you I won't get the virus. I will, however, go loopy with boredom, fat with lack of exercise, and probably plot to murder various people at the DOD for how cruel and unusual military rations are to our troops.
If I go around like there is no Coronavirus, bump into people like a New Yorker on Broadway, never cover my face, and travel all over the country just to ensure I experience every possible regional variation of the darn thing, I will absolutely maximize my chance of catching the thing.
What makes sense is reaching a reasonable point somewhere in-between both options, which, at least to me, are both insanity. We go to the local grocery store, bakery, pharmacy, hardware and liquor store. We shop on eBay for what is not available at those places (I abhor Amazon). We go for two walks a day around our neighborhood, practicing social distancing, and making sure we are shielding ourselves from the people who we do encounter. We do take out once in a while, trying to balance monetary conservation in this uncertain time with avoiding boredom.
I would certainly choose to avoid, whenever possible, being in a space with a considerable number of people and a less-than-fully-ventilated air supply, such as a train, bus, or plane. It seems like an unreasonable risk to a limited purpose, since I can for the moment drive a car. Where would I take it to, anyway? Everything is closed and reduced almost everywhere. What would I sightsee? The boarded up windows of the St. Francis Hotel? Where would I stay?
This whole situation sucks completely. It is going to continue to suck until this virus is somehow defeated. You can't, however, get away from the reality that this virus sometimes kills, and even more frequently, and even worse in my opinion, injures. You can't get away from the fact that the world is going to be, to various degrees, shut down, possibly for a long time. You can't legislate the population into not being scared, you can't force people to eat in restaurants, or go to amusement parks, or visit sports arenas. The best thing to do is hunker down, stay safe, do your best to remain reasonably amused while doing so, and keep in mind that one day, by the grace of God, this, too, shall pass.