I have been wondering about artsy authentic stuff such as this or sand. Alas, they must work around such things and get even more creative than making a tactile floor experience.
If none of you have seen the plans for these houses, and other serious-business houses around the country, you would all be floored by how much of the plans are for ADA, FIRE, EXITS, exits to WHERE and then exit to what. The plans only hint at what the rooms might look like and what path will be taken. It was so disappointing to see them for the first time, yet fascinating if not overwhelming from a technical/state law perspective.