A group of strangers knocking on the door? Let them in
Have you ever moved? Disassembling furniture, packing the junk, carrying it, squeezing it into a truck, unloading, sorting out, reassembling – it's a mess. If you can do it all in one go, you're in luck. After that, about the only thing you still have power to do is collapsing on the mattress and falling fast asleep. The Sims, since they're following a completely different life philosophy than most of us, live in amazing well-being (mostly spiritual). This allows them to still have enough stamina to have a party with a group of strangers who maintain they live nearby. It's a tradition.
An increasing number of people is now using the services of interior architects, buying furnished apartments, and thus being levied from the perils of moving. However, would you invite some total strangers a few minutes after entering your own flat for the first time? Answer this question yourself. People living in Scandinavia and Benelux are probably closest to this idea – I hear they do not use curtains, blinds, nor shutters on their windows. So you could say they're constantly inviting people to visit (it's only that few people actually come).
Let's think about how beautiful it could be. You move in, turn the TV on, crack open the beer – a well-deserved rest. Someone is knocking at the door. You mute the TV, hide the beer, silently approach the door, look through the viewer (you move the cover silently, you can never be too careful) – it's a group of strangers. You quietly move away from the door, step back and listen in silence – have they already left? You turn the sound back on.
Meanwhile, professional success can be based on social trust. You never know who you're inviting into the house. Well, it may be a thief, but it could also be a CEO of a multi-million dollar enterprise, just looking for someone for the post of your dreams. Even if it's not that – it's just good to rub shoulders. That's what The Sims teach us.