Completely smooth surfaces in bathrooms, kitchens or near entrances can become very slippery when wet. Water, soap or even a bit of oil on a glossy floor turns it into a skating rink.
A slightly textured finish gives your feet more grip. You may not even notice the texture visually – the floor can still look sleek – but that tiny bit of friction can help prevent slips, especially for children and older people.
This is particularly important in showers, near sinks, and in areas where people come in from rain. Choosing tiles or materials with some slip resistance is a small design decision that can prevent painful accidents.
You don’t need rough, industrial surfaces; just enough subtle texture to keep footing more secure.