I love this. There are rural communities in the U. S. where everybody comes together and pitches in for a great event. Where I live now, though, people pay great amounts of money to hire a hall and have an event catered. Oftentimes a young couple will feel social pressure to do this and spend money that they could have saved to buy a house or set themselves up.
Communal cooking seems perfect to me. Your pictures are wonderful. The ladies, smiling with the happiness of helping...they are beautiful.