>>510215523outside of Catholicism and some smaller denominations, all of Christianity accepts the notion that children and especially babies go to heaven because they haven't reached the age of accountability yet. What people accept to be the age of accountability varies amongst theologians but newborn babies like picrel certainly haven't reached it.
Christ's sacrifice on the cross is sufficient for everyone who wants to repent and follow Him.
And for those who are too young to make that decision we believe God takes them straight to heaven if they die.