It's not always so easy for everyone to eat together however. People have different work schedules - different deadlines to meet, some may be working from home at times or while on a business trip, and for some, such as myself, lunch is really something I just kind of grab and go, don't really sit down for 30 min to 1hr and eat lunch. That's just my habit, it's a working lunch (although I make up for it at dinner)