The Turn of the Tide in Library Provision

It interests me that people are now turning against the whole staffless library approach that Brent was criticized for not taking during the Transformation Project.  The main alternatives to Brent's traditional style public library service were:

1. Automated machines as in Camden and Barnet.  These allow entry to a library with no staff at all, but still require security checks to be made occasionally, and crucially to my mind exclude "passing trade".  They restrict users to the club of people who have signed up with a library card and a pin number, which is a category I suspect will rapidly dwindle.
2. "Co-located libraries" where colocation actually means try to get the service to do anything other than run a library.  These include all sorts of things like repairing computers and gym hire.  Some of these schemes may be good, but only so long as it does not become just a "nameplate" library with little in the way of actual library facilities.  
3. Volunteer libraries where I just don't believe that unpaid volunteers will be able to provide the same level of support as paid staff.  Indeed I think they probably would not have the same level of ability in terms of dealing with "challenging behaviour" and other problems.  
4. The adoption of libraries as makeshift benefit claimant points, which I think is really a specialist role that libraries cannot easily fulfil.