This bill adds inexpensive basic safety for occupants and visitors who have mobility impairment, while adding conveniences for all persons and without detracting from the aesthetics or adding significant cost. There's no precedent for such legislation. However, some precedent does exist. Florida pass the law in 1989 requiring bathroom door widths on the main floor of all new homes to the wide enough for standard wheelchairs to pass through. People don't like to look of access.
Access is unaesthetic.
First, people affected by barriers and their loved ones like to look of access very much. Third, the interior access requirements in this legislation do not distracted visually, and the exterior solutions to no-step entrance involves simply a sidewalk sloping gently upward to replace a step, a garage floor poured level to one entrance, or a short ramp replacing steps at the entrance most feasible for access. Let the market take care of access. When people ask for it, builders will build it. Or, let builders incorporate access on a voluntary basis.