Romney will surely do better than McCain among young adults if only because of economic conditions. Four years ago, Obama's youth brigade did not hope for "yes, we can" to transform into "yes, we can (live in our parents' basement forever)"
The Republican solution for America is that such jobs as America will develop will continue to be ill-paid jobs with no economic security and few prospects for improvement. The fastest-growing sector of employment will be 'domestic service' in which one gets to live in some grand house as a subordinate to everyone else within except to fellow domestics. They will be superior only to the rodents and insects within the household.