“That is the same number of post-Pentecost infant dedications in the NT as well.”
At the dedications I’ve been to, the people in the church promise to try to help the child grow up with Christian support. I doubt any Apostles would have a problem with that.
I do think they might wonder how “believe and be baptized” was turned into “be baptized and maybe someday believe”.
It is a good question.
I suspect sometime as the church in Rome shifted from Salvation via faith to their current (and false) treasury of merit distributed via a sacramental system.
Please see post 61.