in 1930 the average wages were $27,481*
in 2012 the average wages were $44,321
in 1930 the average home cost $53,635*
in 2013 the average home cost $289,500
in 1930 the average car cost $8,369*
in 2013 the average car cost $31,352
but no you are probably right, it’s just twenty-somethings being lazy.
OP noted that the asterisks signify that the prices account for inflation, so inflation doesn’t have anything to do with these statistics.