"Consent: to agree to do something, or to allow someone to do something" (Cambridge dictionary)
One can start very early talking to children about consent. It can start with teaching them how to pay attention to the sensations in their bodies when they are hungry, cold, etc... or when they go through different emotions (joy, fear, anger, sadness, embarrassment, etc). It is also important that they learn how to take other people's needs into consideration and decipher non-verbal language.
Here is a selection of short videos explaining what consent is:
explained with a cup of tea for adolescents and adults
#consent #cupoftea #emotion