I guess I have a different kind of lifestyle. My marriage, isn't the Ozzie and Harriet kind at all, so no I don't feel "left out". If either my husband or I get home before 8pm from work, it is a miracle. Also, we enjoy traveling and have friends who are like minded for the most part. We actually are friends with many singles, older couples and same sex couples since these folks seem to all be able to accept invitations to late night dinners on the weekends since many do not have kids.
In addition, my own mother felt enormous pressure to have kids in her generation and almost did not (she got married at 19 and had me, an only child, at age 32 when she said she felt it was her decision and not just conforming to the pressure). With that said, she supports me 100% whatever I do, so that really helps especially since I am an only child and would be her only hope for a grandchild. She has never once brought this up to me and I am 31 years old, married for 5 years. I am very grateful!