Hatafat Dam Brit: Young Child

If a toddler receives a hatafat dam brit - is it done with his prior knowledge and consent? Or, just casually worked in when he is unaware? Like when he is getting changed? So if the child is around 3 or 4 - he may be treated with more dignity and respect and not like an infant. Or, could depend on the parents preference how they would like to arrange it. They may choose to go about it in a,more subtle manner so not to upset or worry about it.

Shalom!

Thank you for your question.

One doesn't have to tell him.