Opinions differ greatly on this issue. Personally I am for infant baptism, I believe that the one done in the Catholic Church is valid, which is done with all biblical criteria, in the Father, in the Son and in the Holy Spirit.
Why?
- because Jesus baptized entire families and certainly not refused to do it to the little ones (it was the outward sign that the child was becoming part of the family of God and the public commitment of the family that would give him a Christian education).
- we are not saved by baptism, which is just a ritual, but by faith (think of the thief on the cross who did not receive it). For this reason, those who are baptized and have no faith are not saved, but whoever has faith and is not baptized, is saved.
- one gets baptized only once, there is only one baptism, as the Bible says.
So the answer is: if you have been baptized, even as children, Yup, you can participate in the Lord's Supper, otherwise baptism must be done. But you will find few evangelical churches that recognize Catholic baptism, and this is because unfortunately the Italian evangelical world is very fundamentalist ... and anti-Catholic.
Jesus saves families:
«Believe in the Lord Jesus, and you and your family will be saved ". proceedings 16:31