While I do see your logic, NRS reads as:
NRS 432A.0205 “Accommodation facility” defined. “Accommodation facility” means a child care facility which is operated:
1. By a business that is licensed to conduct a business other than the provision of care to children; and
2. As an auxiliary service provided for the customers of the primary business.
A casino is not licensed to operate the child care facility, the license is held by KidsQuest which is a separate entity which leases a portion of the property. If the child care facility was owned and operated by the casino itself, i would tend to agree with you, but the fact that it is a lease of a specific area of property, by a separate entity would prevent this section of NRS from applying in this situation.
NRS 202.3673 Permittee authorized to carry concealed firearm while on premises of public building; exceptions; penalty.
3. A permittee shall not carry a concealed firearm while he is on the premises of:
(a) A public building that is located on the property of a public school or a child care facility
This is where it becomes a bit more confusing. You can not carry in a public building that is located on the property of a child care facility.
So, lets say the child care facility owns the property, and leases out a building on that property to a casino, this law would apply and you can not carry. However, in the situation we’re talking about, the property is owned is that of the casino, and the child care facility simply leases a small part of that property. Therefore the part about “public building located on property of a child care facility” would not apply.
Of course, as you mentioned a cop having a bad day could simply arrest you and let the lawyers and judges sort it out. But the intent of the law is pretty clear to me, and a case easily won if the DA would even waste the time to attempt to prosecute it.
I’m sure if you were in there to rob the casino, this could be one of those extra charges they slap you with just because they want to hit you with anything they can think of, however if the only charge was for peacefully carrying a legal weapon, I doubt any DA would dare prosecute, and most certainly would not win.
Illegal or not, the one thing we can both agree on is there are a couple members of our elected state goverment that need to be shown the door and put an end to these silly laws in the first place.
Source: https://www.usacarry.com/forums/threads/casinos.3298/