This article argues that the United Kingdom’s proposed “Universal Credit” fails largely because it fails to be universal enough. If it was structured more like the UK’s child benefit system, it could be more effective and more of a step toward a Citizen’s (or Basic) Income.

Citizen’s Income Trust, “Editorial,” Citizen’s Income Newsletter, Issue 1 2013.
https://www.citizensincome.org/resources/Newsletter20131.htm