We stayed in a hotel in NYC a few years ago that had a shower floor flush with the rest of the bathroom floor. It was nice, and not nearly as water messy as I thought it would be. Curbless showers are great even if you’re not disabled or elderly. Plus, if you put blocking in the walls from the get go, you can install rails and a seat later, should you become disabled or if you plan on living out your life there. They look cool, and gives the room continuity with finishes and the flow of space. And you don’t need a shower door or curtain – I’d happily give up those gunk collectors, not to mention trying to scrub the additional surface area of a curb and jambs for the door.

Not sure if they still make it, but Dural has a product called TILUX that integrates the shower pan into the floor. Here’s a YouTube video showing how the installation works: