Want to remove the friend mechanism

Hi,

I work on a community site where all users are well known to the others (a - big - family website).
The notion of "friends" is a non-sense in this case. There will be around two hundred of users only in the site, and I dont want "diplomatic incidents" cause aunt X as not ask nephew Y to be her friend...

So I just need the follower mechanism. Is it possible to completly remove the friends connections ?

In the case of negative reply, is it possible to make users automatically friends with all others ? And, in this case :

• to forbid users to change their list of friends ?
  
• to remove all the links and icons related to friends in the dashboard ?
  

Thanks,
Christophe