First, I am relatively familiar with the admission process at Cambridge and noone gives a crap whether you were on a robotics team at high school + the rest of the extra-curricular jazz. Personal statements mostly just get ignored. Have no idea about the US thouigh, maybe its very different over there.
Second, I know several people from a generation born it the 50s and 60s whose parents either directly forbade them going to the university (rural France, woman's place it at home) or had to put up with conditions unfathomable to most of undergraduates today. The last 2-3 generations are historically unbelievable privileged. But sure, 'It is no party'.