The benefits of supported living are the choice, control, and enfranchisement that come from holding one’s own tenancy. The resulting responsibilities include managing multiple costs, keeping to the tenancy agreement etc. For some people the benefits may not be meaningful or desirable and then the costs are an avoidable burden. So there are times when supported living may not be the right model of support.
That’s why all decisions about an individual’s support should always be made on person-centred grounds, not on any sort of ideology.
For example, it may be that a registered care home is able to offer greater shared support. It may be that a tenancy becomes something of an anchor, if a person’s declining health requires considerable adaptation to be made to his or her living environment.
It could be that a single person supported living arrangement leads to the person becoming more socially isolated (though note that in this case the issue is the ‘single person’ not the supported living per se.)