either allow one to carry something on the back or on the front (though wearing on back prevents carrying anything else while wearing on the front limits what can be done with the hands
another way to carry the infant on the hip with a carrier that still requires one hand.
Note that this is child who is carrying
Note also how this might be easier or more difficult depending on how handness is handled in the locality
In one case the hands are not available for anything (though the arm can be used to carry the bag)
Carrying a child on one's shoulders is carrying mode is strongly gendered: most pictures on a simple search are of men
WHAT TO ASK: