回复：是这么一回事吗？

For single family housing communities, you will never see "身穿制服的管理人员". (This is imagined by the author based on his/her experience in China).

And "邻居之间一年到头也很难碰上几面" is not right either.

"这里绝对没有国内常见的业主联谊会之类的活动": This depends on you (the residents). If you want to organize parties, just do so. If no one wants to do the organization, then, no party for you. My community organizes 1-2 parties a year.