While I still believe my primary reasoning is still the non-baby boom, some minor factors are also the general break down/disruption of the family. When I was in high school, can only think of a very few people I knew who were from single parent homes. When I talk to my kids or their friends, a very high percentage are from single parent homes, or blended homes. This break up of continuity of family life is pretty significant. Most of the time this happens in the earlier years, so right after a divorce, the last thing on ones mind is camping. Pretty hard to do as a single parent, and pretty low on the priority list. Usually one is in survival mode. Camping takes thought and preparation.