Does the presence of children with a woman and a man invalidate seclusion?

Question : May you love Allah. Does the presence of children with a woman invalidate her seclusion with a non-mahram if there is a non-mahram man with her?

Answer : The Prophet (peace and blessings be upon him) said: It is necessary that the mahram be a mature person of sound mind, and it is not sufficient for her to bring a child who is six or seven years old or similar to that, until