While some avoid grouting due to its cleaning requirements, opting for dark-colored grout can mitigate this concern, and urethane or acrylic grouts eliminate the need for sealing.
Grout serves to reinforce tiles, preventing movement and enhancing durability. Skipping it can lead to issues, such as tile shifting, cracking, and posing a tripping hazard.
Grouting not only prevents dirt from settling into the gaps between the tiles but also acts as a shield against moisture penetration that can foster mold or mildew.
Regularly clean your grout with vinegar or a steam cleaner to prevent mold or mildew from damaging it. With proper maintenance, grout can last for over 20 years.