My siblings and I got measles as kids. Everyone did fine. Never heard of anyone dying or having problems from it.
And considering the improvement in medical care and anti-biotics/virals/inflammatories a lot of those can be prevented.
And it confers lifetime immunity. Depending on somewhat unreliable vaccines and supplies puts a lot of people at risk, especially those who get it as adults.
Measles is dangerous in adults.
When I was seven there was measles in my classroom (there was no vaccine yet). My Dad had a public health nurse come to the house and give me a shot of gamma globulin (which at that time contained measles antibodies), and I didn't get measles.
When I was in high school, girls were the first to get the vaccine (so I didn't get it).
I caught measles from a patient when I was 28.
I had a high fever for two weeks. I had myocarditis and developed heart scarring. I turned yellow from measles hepatitis. I was out of work for three months.
The death rate in children from measles in the 1950s was around 500 per year. Not polio, not smallpox, but 500 dead kids, that was accepted as "just one of those things".