No it’s not but they along with a subset of individuals with certain characteristics are most vulnerable.
Diseases mutate. And they mutate to their betterment. (The ones that don’t disappear).
So if they’re eventually left unchecked they will work their way to being deadly to the young as well as old.
That’s how diseases work.
Even though numbers are dropping in England I heard today about someone who I knew through friends of friends who died this morning. He was 30.
No existing (as far as friends knew) of any health issues.
He felt ill last Friday. Died this morning.
Both his parents had been vaccinated. Apparently he saw them this time last week.
Based on that. Get the jab. Err on the side of caution.