This is an entirely hypotherical situation and I realise there's no actual legal standing for next of kin, but a few things have happened in my life that have made me wonder what might happen in certain circumstances. So, by next of kin I mean the person who does all the running about if you're too sick to do it alone. The person who gets you to appointments, makes sure you're washed and fed, organises prescriptions etc, taks to social services if necessary.
Two scenarios. Someone who lives alone, has adult DC and a long standing but not live in DP, and elderly parents, some decent friends. All live nearby.
Same as above but no DC.