I was very actively hosting and surfing from 2007-2011 . I still have friends made in that period. Both locally and from hosting/surfing. Most of them now are settled, often have children. Most stopped actively hosting and surfing long ago. But some stayed active in the local communities.
How can surfing and hosting be made attractive (again) for those people? Can friends from friends be easily checked by that friend in the middle? Can I filter on only couples without children? Can I search for hosts with children of the age of my children? Can my teenage child find a safe couch? Can I surf without feeling the social pressure of having to host?