It's quite normal for someone at home to ask for your wifi password nowadays—could be a friend, a family member, or even a neighbor visiting. The DECO BE85 secure guest network provides a great option in situations like this. It's not about the use, but there are lots of preferences stored on your primary home network that could be tied to your finances or whatever. https://deco-mesh.net/deco-be85-safe-guest-network/