The answer to 'why is my grout dusty' is that grout can become dusty and discolored over time due to a few common reasons. Improper sealing, excessive foot traffic, and lack of regular cleaning can all contribute to grout becoming dusty and worn down.
Grout is a porous material, so it can easily trap dirt, dust, and grime if not properly sealed and maintained. Without regular cleaning and sealing, the grout can start to break down and become crumbly, leading to a dusty appearance. Excessive foot traffic can also wear down the grout over time, making it more susceptible to collecting dirt and debris.