Does one have to join a clan to enjoy the RP server

[tk9780]

6.5 Buying an ID will not automatically mean that player becomes part of appropriate player faction

Apologies in advance for going over what to many must see as old ground :(

Does this mean for example One wouldnt be able to buy a Rhineland Police ID tag, then RP on the server with other players in accordance with their character ID tag without joining the clan who operating the Rhineland Police.
I can see the benefits of clan factions; the organisation would give aide to better Role Playing, but then what about those players who dont want to commit a clan for a number of reasons, but would still like to part take in RP on Disco server.