Yes!! He takes everything literally - like telling his friends he would be a cannibal to "eat the body of Christ"....it's difficult to make him understand that it is a symbol....
But it isn't a symbol, not for RCs.
Yup. Transubstantiation. One of the most fundamental differences between High Anglicanism and Catholicism (though there are others)
RC believe that the bread/wine actually does become the body and blood of Christ . It is not symbolic, they believe it actually happens and receiving or eating it, is a direct grace from God. When you take the Holy Communion , you are actually communing/joining with God (hence the words Holy Communion).
It isn't canalbalism, because God is not human within the bread and wine so you are not eating a person's flesh and blood, you are eating God's flesh and blood which is a sort of resurrected and transfigured “super body”. Also canabalism involves eating dead flesh, the Eucharist is life, so you are eating life not death.
Holy Communion is an incredibly sacred act to Catholics. This is why FHC is so important to them and why they spend so much time preparing children for it. It has nothing to do with converting your child, although Catholics do believe that the only sure way to God is through the Catholic faith.
(I am not practising any more BTW
).