Can you walk on the carpet after steaming?

It is generally recommended to avoid heavy foot traffic on the carpet until it is completely dry after steam cleaning. The reason for this is that the carpet may still be wet or damp, and walking on it can cause the dirt and stains to be re-deposited on the carpet, making it harder to remove them. Also, walking on a wet or damp carpet can cause the carpet fibers to stretch or become misshapen, which can cause damage to the carpet.
After the cleaning process, the professional cleaner should extract as much water as possible from the carpet, and use fans or dehumidifiers to speed up the drying process. However, even with the extraction and drying process, the carpet may still be damp in certain areas. In this case, it is best to avoid walking on the carpet until it is completely dry to prevent any damage or re-soiling.
If you need to walk on the carpet, it's recommended to wear clean, dry socks or to place clean, dry towels on top of the carpet to protect it from any dirt or stains that may be on your shoes.
It's important to note that if you have any concerns about the carpet being dry or wet after the cleaning process, it's best to ask the professional cleaner for an estimation of the drying time and to follow their recommendations regarding when it's safe to walk on the carpet again.