Kids make a lot of things:
Most of this can easily be turned into white noise.
A simple philosophy is; if they aren’t destroying anything, hurting anything, eating anything they shouldn’t, then it’s ok for your brain to process it as white noise.
The danger with this philosophy is; if they ever want to share anything with you, you may find yourself in the realm of winds and smoke.
Remember, if you don’t listen now they won’t talk later.