Your home and you are all new to the cute little kitten that has just recently entered the world. Some things need to be taken slowly and your kitten will likely set his or her own pace as to how much to explore in their new worlds and their new homes.
At the age of around 6 weeks old kittens are ready to leave their mother. Having been around their mother for the first 6 weeks of their lives kittens have developed both physically and socially to the point that the kittens are able to leave her and cope in a new environment. Kittens adapt quickly to change so long as they have lots of love and attention.
It is very important to spend quality time with your kittens when you first bring them home, show them around and get them feeling comfortable in their new home. The initial few weeks are also vital to you and your kitten making that very special bond that will act as a base for the rest of your lives together.
Kittens need to be able to explore and learn and it is best if you are there with them making sure they are safe and letting them learn with you around will add immense value to the start of your shared bond.