Volunteering full time on BI sounds like they are paid to volunteer, and my narrow definition is because I see people behaving similar to what I've observed with foodstamps.

finding ways to live off solely that and making little to no effort finding a job, simply finding ways to increase foodstamps by having additional dependants or otherwise.

these people are not volunteering more or what I would say are being productive members of society, yes they are likely a small percentage, maybe 1 out of 50 however, I see that percentage skyrocketing if something like basic income is provided.... I don't mind being totally wrong, I just find it very very very hard to believe people will still try to be 'productive' members of society ina general term.

not to invoke Ayn Rand, because I disagree with more than 50% of Atlas shrugged, but the whole concept of 'To each according to their need and to each according to their ability' does not work. people will abuse the system of BI just like SNAP or foodstamps or Dole are abused today.

just to add quickly, I do believe one day the need for many types of work will be minimized to almost nothing, so some solution will be required, but from what I've observed with proposed BI solutions I have very little faith in actually succeeding.

I dream of a day that was referenced in Star trek where all of these challenges were 'solved'. I do not see BI in its current infancy being a possible solution, it needs work and I'm excited to see more research on the topic because that is what it needs in order for a solution like it to be truly successful.