Satus quo bias is a cognitive bias that consists of giving undue preference to the existing state of affairs.
Kahneman, Daniel & Amos Tversky (eds.) (2000) Choices, Values, and Frames, Cambridge: Cambridge University Press.
Samuelson, William & Richard Zeckhauser (1988) Status quo bias in decision making, Journal of Risk and Uncertainty, vol. 1, pp. 7–59.