Left handed baby holder? Right?
Irrelevant. In either instance, an inability to internally rotate your shoulder (see Hang Archetype), will lead to compensation – a dumping forward of the shoulder, which is neither efficient nor ideal for a parent who is looking at a few years of solid baby-to-toddler carrying.
And no, the cue to create rotational load when holding a kid is not “break or bend the baby.” Shame on you!