Why did many people initially resist adopting settled agriculture?

Settled agriculture brought about huge changes in the ways in which humans lived and consumed in societies. In a marked shift from a hunter-gathering style of living the transformation to settlement and agriculture, brought about further social changes and the ways in which both the family and culture was organized; this change resulted in higher population density, allowing for more people to be fed from crops, however, this didn't come without trial and error and conflict as scarcity would come and go. However, this led to much innovation and development in intellect and culture.