If you have had chickenpox, in later life you have a higher chance to get Shingles.

You can only get shingles if you have previously had chickenpox.

I’ll make that edit. I was under the impression you can get the Varicella virus as an adult if you never had chickenpox as a child and that it would be Shingles.

EDIT: https://www.hopkinsmedicine.org/health/conditions-and-diseases/chickenpox

Any child or adult who has never had chickenpox or been vaccinated against it is at risk for getting the disease.

The illness is often more severe in adults compared to children.

However, I see why chickenpox parties became a thing:

Most people who have had chickenpox will be immune to the disease for the rest of their lives. However, the virus remains inactive in nerve tissue and may reactivate later in life causing shingles. Very rarely, a second case of chickenpox does happen.