What is the "condition of youth" in the context of jury selection?

While there is undoubtedly a great focus today on the youth in terms of customs and fads tending to set them apart, there is also what has been [22 Cal.App.3d 540] recognized as a 'condition of youth' which seems more appropriate to the case in hand. This latter is the burden youth carries of striving for an education, fulfilling mailitary service commitments and the great expenditure of time and energy in creating a family or an individual niche in society. This burden of youth ofttimes prevents them from accepting community obligations for which their elders have far more free time to spare. It is this last described 'condition of youth' which often militates against their selection on grand juries rather than any invidious exclusion by their seniors. (United States v. Leonetti, D.C., 291 F.Supp. 461, at 477.)