0.5% of 30 year olds is not going to the hospital for Covid-19 by a long shot.

In the Netherlands there are approximately 1.100.000 people between 30 and 34 years old (inclusive). Of those people 150 entered the hospital. That’s 0.01%. Most of these people are not dying (in fact only 3 of them did, which is 0.0003%) and while there isn’t a number of people with the chronic problems it definitely isn’t all of them.

By the way slightly more than 0.1% of the population dies every year due to smoking. I have yet to see the massive safety efforts.

Only a fraction of those 1 100 000 individuals were infected until now.Estimates based on antibody tests hover around 3% infected.

In the Netherlands the estimates are actually about 10% so if you really stretch it you end up with 0.1% hospitalized, which still is not near your 0.5%