I don't mean to sound like a protestant, but Christ said with water Baptize in the name of the Father and of the Son and of the Holy Ghost. Period. He didn't say anything about age, Godparents, sponsors, holy oil, exorcisms, parents religion or political affiliation, nothing, nil, nodda.
If anyone is baptized they are eligible for heaven until they commit a sin whether that be within the Catholic church or outside it.