When I was a baby, the Catholic Church emphasized that babies should be Baptized as soon as possible. I think I was maybe three weeks old. However, today... the Church doesn’t really emphasize this much. For your first child, the parents have to attend classes (AFTER the birth of the child). So, our son was closer to four months old. (I say AFTER because our Parish had that restriction). So, I did what my old Catholic school girl friends did... I Baptized them myself at home and then had them “formally” Baptized. My husband Baptized our youngest in a hotel room in China (just in case). It made me feel better. Wether this is sanctioned or not... I know seven old school friends who did just this.
I think it’s going back to those old rules.
Whenever I see a baby walking down the street, I surreptitiously baptize him just to be safe.