In the episode Rejoined Dax encounters a joined Trill to whose symbiont Dax had been married in a previous life. The episode established that Trill society considers any reassociation of the newly joined with relations of previous hosts a total taboo. Instead they must seek out new relationships and leave their old lives behind them.
I believe the social reasoning behind this is to prevent symbionts from forming a closed elitist circle amongst themselves. Thus they are forced to spread out keeping them in touch with society. This also forces the symbionts to gain new experiences and spread their wisdom and knowledge around to different endevours with each new host. In the long term this helps keep Trill society vibrant and dynamic and prevents the joined from dominating positions of power, as they have to work themselves up through the ranks with each new joining.
However, in the case of Ezri a number of these rules are breached without much concern. Not only does she reassociate with almost all of Jadzias relations that were current when she died, but she goes to live and work in the exact same place. Add to this that she wasn't even a proper symbiosis initiate but an emergency solution this must have caused a lot of resentment back on the homeworld. All in all this seems like quite a drastic oversight by the writers or maybe I'm remembering all this incorrectly?
I believe the social reasoning behind this is to prevent symbionts from forming a closed elitist circle amongst themselves. Thus they are forced to spread out keeping them in touch with society. This also forces the symbionts to gain new experiences and spread their wisdom and knowledge around to different endevours with each new host. In the long term this helps keep Trill society vibrant and dynamic and prevents the joined from dominating positions of power, as they have to work themselves up through the ranks with each new joining.
However, in the case of Ezri a number of these rules are breached without much concern. Not only does she reassociate with almost all of Jadzias relations that were current when she died, but she goes to live and work in the exact same place. Add to this that she wasn't even a proper symbiosis initiate but an emergency solution this must have caused a lot of resentment back on the homeworld. All in all this seems like quite a drastic oversight by the writers or maybe I'm remembering all this incorrectly?