No. Catholicism is against religious circumcision, so not many, if any, Catholics are circumcised.
Citizens with Irish origin are not usually circumcised.
I did, I had all my sons circumcised. My father did not have his son circumcised. (Me) I had to have it done myself.
No, we just figure they are trying to repeal vampires. Besides Catholics don't usually wear crosses, usually, they wear crucifixes.
There is an organization called Catholics Against Circumcision that argues that circumcision is against the spiritual principles of Catholics, and that therefore Catholics should remain intact. It is not a requirement for either Catholics nor Protestants to be circumcised because of their religion like Jews or Moslems. Therefore to ask in which denomination circumcision is more common is irrelevant. It is likely that there is very little difference between them.
An adult circumcision is usually performed by a urologist.
The vast majority of men in the world are never circumcised, so there's not really an answer to your questions. Jewish infants are circumcised 8 days after birth. However, circumcision is very rare in most parts of the world.
No, non-Catholic spouses of Catholics can usually be buried in a Catholic cemetery.
They usually ask if it is Biblical.
Circumcision is usually a choice made by the parents of the boy though some adult men get circumcised later in life. Most have their son circumcised for cleanliness reasons or because of their religion. Not everyone is circumcised and it is definitely not something group based like boy scouts. I'm sure there are boys in your group who still have their foreskin.
Roman Churches usually refer to Roman Catholics. Roman Catholics use a different method of worship compared to Christians.
He is definitely circumcised
Yes he might have been circumcised.