I had the measles almost 70 years ago - got them during a “measles party” in the mid 50s...got Chicken pox and Mumps the same way...don’t have to worry about them ever again...
At that rate you will never see your 30th birthday. ;=)
It used to be a right of passage as a child. We also never knew anyone with a peanut allergy and maybe only one with asthma.
EC