Not only have thousands more people died than in neighboring countries that imposed lockdowns, but Sweden’s economy has fared little better. “They literally gained nothing,” said Jacob F. Kirkegaard, a senior fellow at the Peterson Institute for International Economics in Washington. “It’s a self-inflicted wound, and they have no economic gains.”
People don't go out until they think it's safe. Herd immunity would take years. Shutdown and slow re opened has/is working in other countries.