The Build mode is the family choosing between many, many different houses, and choosing certain adjustments that they would like. Buy Mode is the conscience overseeing a cost-benefit analysis of want and need items on a phone catalog with ridiculously fast delivery and setup service (no IKEA in Sim Nation) and the characters sleepwalk through their jobs, or do things that would be expected of them being in the job. The opportunities for advancement are situations in which the character's conscience, loyalty to the rules of their job, and sometimes self-benefit drive conflict. The conscience actually has to be consulted in these cases and these cases only. The player telling a character to, say, continue cooking or exercising and them complaining that they really have to use the restroom is