Memory in youth is active and easily impressible; in old age it is comparatively callous to new impressions but still retains vividly those of earlier years.
All we can do when we think of kids today is think of more hours of school earlier age at the computer and curfews. Who would want to grow up in that world?
Gay marriage is the last bastion of to me as a legal ceremonial sentimental and religious side it's one of the last steps. Retaining your job being one of the earlier steps like not getting kicked out of your job because you're gay.