That may be a reasonable decision as an individual. I disagree because I think the risks from the vaccines are near zero (not actually, but near), while here in the UK most hospital admissions now are young people so clearly the risk to them is not at all zero. Still, you'll probably be fine.

The problem with that calculation though is that it doesn't take into account the increased risk to other people. If you do catch it you'll become a vector for infecting other people, some of which might be a lot more vulnerable or less lucky than yourself. Even if you only pass it on to other younger people, the odds of someone having a bad reaction still go up with infections.