If you're young and healthy and have fast reaction times drive a large safe vehicle you might think the marginally increased chance of injury because of a crash is not worth delaying your journey by driving at a limited speed or obeying stop lights. but now everybody's driving fast and on the wrong side of the road and zooming through red lights and nobody gets anywhere faster safely because you have to slow down at every intersection and check if a car is coming. Lock down isn't delaying people's lives it's ensuring there's a society for those lives to continue in.
That's actually a really good analogy. We don't say "drive at 5 km/h to save lives", just like we shouldn't say "only be at home, work or in the store to save lives". There's a middle ground, which in addition is consistent with freedom (don't wanna die? don't drive, don't party during a pandemic)