Word for being aware of something but not doing anything about it?

To expand on the title more, is there an adjective for someone that is aware of something happening but is not doing anything about it, even though they could interfere but they're just not choosing too?

Here's an example: let's say that there's a toddler at a daycare. The toddler starts stealing toys from other kids and gets into fights with them. The daycare supervisors are completely aware that this is happening, and they can intervene, but they choose not to.

I tried the words ignorant and oblivious but that doesn't work since the person is aware it's happening. I also can't think of any other word that works. If someone could help, that would be greatly appreciated.

Solution 1:

You are looking for an adjective for "someone that is aware of something..."

You may say they are unconcerned about what's going on around them.

• unconcerned - (adjective) not involved, not having any part or interest. It suggests a lack of sensitivity or regard for others' needs or troubles "unconcerned about the homeless". MW - - Not involved or interested, indifferent TFD

• "a good parent will never be unconcerned about the education of their children"
• "The question then is how a person can have self-respect if they are unconcerned about their own interests"
• "A sensible adviser ought not to be unconcerned about the influence which his writings may have on the public"

Solution 2:

How about ignore or turn a blind eye to?

M-W:

ignore: to do nothing about or in response to (something or someone)

TFD:

turn a blind eye to: deliberately overlook, ignore

Also deliberately overlook. From M-W:

overlook: to pay no attention to (something)

Your example:

The daycare supervisors are completely aware that this is happening, and they can intervene, but they choose not to. They choose to ignore [or overlook] it.

The daycare supervisors are completely aware that this is happening, and they can intervene, but they choose not to. They turn a blind eye to it.