While younger people do die, they remain outliers even now. Everywhere I read newspapers, they are pushing the fact that young people die and get seriously ill to the point where there is the sentiment that this is common. It still isn't. The median age of people in the ICU is however decreasing. In my hospital the youngest person in the ICU is 47, out of 68 ICU beds that are all occupied.
Even non vaccinated, I would worry a lot more about traffic than about covid in the LOS.