I think that depends on the needs of the individual. It is up to him or her to determine the kind of support that is needed. Peers should not force a particular type of support on these individuals. It has to be voluntary. When you impose the involvement of a support group, the impact can ultimately be a negative one.
So, there has to be a certain synchrony between the need for social support and what is offered in terms of support. In that sense, I think the best barometer is the individual concerned.