Why do some locations have an on/off switch while others do not?

Another newbie question. What does it mean when an area comes over from my Universal Devices EISY with an on/off switch and some do not? See screen shots below.
Screenshot 2024-01-09 at 11.02.56 AM

Sorry, couldn’t attach 2 files. Ugh.

Here is the 2nd area with no on/off switch

You can adjust it per card here (header toggle):

image

In the first view all entities are toggle-able (no idea whether this is the correct spelling), so the Entities Card gives you a „main toggle“. In the second view there are mixed entites ( different domains), so there’s no header toggle available (because a binary sensor obviously can’t be toggled).