Price disclosure is regulated, and the research explains why
The FTC Funeral Rule (16 CFR Part 453) requires funeral providers to give a General Price List to anyone who asks in person about arrangements, to provide prices over the phone, and to let consumers buy only the goods and services they choose. A case-management system should generate the GPL and the itemised statement from the same price data, so what the family signs matches what you quoted.
Why regulators care: Harrington and Krynski (Journal of Law and Economics, 2002) find that state rules requiring funeral directors to be embalmers or funeral homes to have embalming rooms are associated with cremation rates about 16% lower, raising funeral spending by about 2.6%, and present evidence that directors can steer consumers toward burial. Chevalier and Scott Morton (Journal of Law and Economics, 2008) show that when restrictions on who may sell caskets are lifted, casket prices fall but service prices rise by nearly as much.
For your software choice, the lesson is transparency: clear itemised quotes, online price information and arrangement tools families can review at home make it easier to show that every price was disclosed.