The diving board is a build mode object in The Sims, The Sims Bustin' Out, The Sims 2, and The Sims 3. It must be placed on the side of a swimming pool, and must stick out over the water, except in Bustin' Out. Diving boards, as such, do not exist in The Sims 4, but a related object, the diving platform, was introduced in The Sims 4: Get Together. In general, how well Sims dive, and how likely they are to change their minds about diving once on the board, depends on their body or athletic…
