Comments on the lack of data available, provides a summary of a US household legal needs study in 1994 where 50% of households experienced one of more legal problems annually.
Of those with legal needs, 37% of the poor sought assistance from a third-party for resolution of the problem, 29% from a specifically legal third party such as a lawyer (21%) or other from a non-legal third party (8%). Among moderate-income households, assistance from a third-party was sought with 51% of problems, 39% from a specifically legal source (lawyers 28%, other legal/judicial 12%).
Comparing findings of US and UK legal need studies: the specific use of lawyers in the U.K. surveys is roughly the same as in the U.S.: 27% in England and Wales, 29% in Scotland versus 26% in the U.S. Where the substantial difference emerges is in the use of other third-parties. Moreover, because non-lawyers in the U.K. are authorized to give legal advice (such as volunteer-staffed Citizens Advice Bureaux or proprietary legal advice centres), the effective difference is even greater: Americans received advice from those who are able to give legal advice in only 37% of cases, compared to 60-65% of U.K. cases. Furthermore, a far smaller percentage of the U.K. respondents, as compared to U.S. respondents,
Gillian K. Hadfield. (2010) Higher Demand, Lower Supply? A Comparative Assessment of the Legal Landscape for Ordinary Americans Fordham Urban Law Journal.