No, they don't. My mom didn't have to pay any fees when she went through RCIA a couple years ago.
no
Absolutely Not.
Yes
Yes
Yes. Adolf Hitler was baptised in the Roman Catholic church.
Yes J.f.Kennedy was baptised in a catholic church.
Christian and Catholic are the same thing. If you get baptised as a Catholic you are a Christian Catholic
Catholics are Christians. So any baby baptised in a Catholic Church is being baptised as a Christian. If you want your baby to be a Protestant, another type of Christian, then you would not have them baptised in a Catholic church.
You are considered a Jew if your mother was a Jew. You are a Catholic if you were baptised in a Catholic Church. So it is entirely possibly to be a Jew who is a Catholic.
Yes, anyone who hasn't been baptised before (Being baptised in another Church and going to the Catholic doesn't require another baptism) can be baptised. Talk to the parish priest and he'll tell you the informaiton you need.
start going to a catholic church if your devoted get baptised and abandoned your old religion
Anyone can be baptised Catholic. There are of course some classes that the church expects prospective members to take before the ceremony has taken place. This is to ensure that the person in question can make an informed decision to join the Catholic Church.