There are conversations for adults; there are also conversations for children or young ones. There are times that adults and children talk together. There are actually topics which are only for adults such as things about relationships between couples, debts, heartaches, work, and a lot more.
To be safe, Filipinos teach their children not to listen and/or butt in when adults are talking to each other except when they were permitted to be there and their voices are needed to be heard or opinions were asked. When a child or young one butts in, it is considered rude and older ones might consider it as disrespectful.