It's really scary, I'm worried for him. And now I really don't want to get it.
I know of multiple people in their 20s-30s-40s who have said it's the worst sickness they have ever felt. Some others who were really sick for a day or 2 and now seem fine.
I'm not a doomsday person, but it's something I'd like to avoid rolling the dice on (and I do have fear of older relatives catching it). Then there are the possible long term health effects still unknown. Unfortunately for whatever reason people have to be scared into taking the simple, basic precautions.
The thing about the disease is that it attacks some people much much more severely than others. We do not know why yet, but I'm positive that we'll eventually find out there are biological reasons (blood type, genetics, Vit D levels, etc).