It is not necessary treat people as toddlers. People are already capable of managing risk and will take precautions as they see fit for their situation. Those who are not able to provide for themselves are most often able to find someone within their community to help.
All decisions at this point have significant downsides. There is no clearly correct answer. Politicians are trying to balance those concerns, and they're trying to do so with extremely limited data and awful models (due to the bad data - GIGO). I don't honestly think anyone knows what will really happen with either the virus OR the economy. It's clear they're just guessing and that's really terrifying.
> Unemployed persons were significantly more likely to die than those in a comparator group; the hazard ratio adjusted for age and other covariates was 1.63, showing that unemployment is associated with a 63% higher risk of mortality. The average effect was higher for men than women with an increased risk of 78% compared to 37%, respectively. Unemployed people in their early or mid careers faced an increased risk of 73% and 77%, compared to 25% for those in their late careers. The risk of death was over 70% in the first ten years of follow-up but fell to 42% after that, although the trend was not significant in the final meta-regression model.
[1] https://www.scie-socialcareonline.org.uk/losing-life-and-liv...
That said, by saying the economy is more important than people dying, this is not an either or decision. Do you think thousands of extra dead are good for the economy? What about the health workers, by not shutting down you would essentially put them into the situation where they have to deal with a completely overwhelmed health care system, leading to more dead health workers (the primary reason for dead health workers in China and Italy was that they were so overworked and stressed they could not follow best safety practices).