I think it would be a good thing if there were a few under-30s in parliament to get a wider point of view. Also it would be useful to have a few people who have brought kids up on benefits or served in combat in the armed forces.
But generally I think it would be beneficial for those who aspire to ministerial rank to manage something first. The fact that they have not is revealed by the daft and impractical ideas they come up with. Would Gordon B have ever come up with Child Family Credit if he had ever tried to grapple with some complex regulations as an administrative manager? Would Osborne have given the nod to the pasty tax if he had worked in a Greggs? Would Gove have turned the exam system on its head if he had ever worked as a head of English in a secondary school? And as for Blair and Cameron... 
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