Even at weddings, everyone begins to file out as soon as the priest and the wedding party have left. This happens at very solemn Masses, all over the world. That is because “Go in peace” really means that.
It would be a different matter if the church remained anything remotely like quiet when the recessional music was over. As it was, it is rarely quiet enough to pray, anyway. For that reason, even the people who used to be in the habit of spending time with the Lord after Mass sometimes feel driven out by the noise and the full-volume conversations that follow the recessional. Many churches are hardly fit for prayer until after the musicians have left the building. (Not to single out the musicians: I mean until
everybody is gone…and the line telling the choir master how to choose better songs is probably the longest one* inside* the church, since Father usually fields complaints coming his way outside. :roll eyes
And, by the way, it is rash judgement to decide that someone else is a disgrace because they haven’t had the chance to satisfy you with their reasons for coming or going. While it is OK to say a practice is terrible in theory, then, let us be clear that we are talking about the principles we use to regulate our own comings and goings, and not the principles we use for minding business that is not ours, right?
PS Excepting that families with small children often have a rather good excuse for coming in late or leaving early, this is more a
Liturgy and Sacraments thread than a
Family Life thread.