Simon People who haven't had any religious upbringing can know right and wrong. In fact, studies show that babies as young as a few months can make judgements on whether someone is mean or kind to others.
I remember being at a mother & toddler when my twins were babies. There were about 40 mother's sitting in a huge circle and the babies playing in a giant scrum in the centre (ah for the days before Covid!😜)
Well one of my son's must have been thirsty because he suddenly side eyed another baby who was drinking from his bottle and had put it down. My son slowly wiggled & crawled over to the bottle. Looking around carefully, he slid over to the bottle and whilst trying to look away as disinterested as possible his hand shot out sideways as he grabbed the bottle and took a crafty glug.
He then guiltily looked over his shoulder at me! I swear that child was not even 9 months old - yet he knew that bottle belonged to someone else and that he shouldn't have taken it.
Sure young babies can know they've done wrong, but usually once they're told off But It was the amount of strategy he used to get to it - all the while displaying the fact he knew he shouldn't be doing it - that surprised me.