Yes, you can walk on sanded floors, provided they have been properly sanded, sealed, and finished.
A well-sanded, sealed, and finished floor will be both smooth and durable, providing a safe and comfortable walking surface. Sanding is generally done to remove scratches and blemishes and create a uniform base for the finish. Sealing helps to protect the floor from water damage, dirt, and wear, while the finish provides an attractive shine. However, if the floor is not properly sanded, sealed, or finished, it could cause splinters or other safety risks, making renovated floors potentially hazardous if not cared for correctly.