The best-ever way to explain consent to just about anyone.
Do ask what the child needs or would like your help with. Too often well-intended advocates take action that the child isn’t ready to manage. Remember, it’s all about them. Your role as a supportive adult is to listen and provide help…even if that means simply giving them a hug or finding appropriate resources for them.
Trust your child to know their gender even if it doesn’t conform to the gender they were assigned at birth and may not make sense to you. Gender is not about what genitals a person has but who they know themselves to be in their heart.