Problem children
My other passion is RC models. The problem with the multi rotor models (aka drones) is that they are very easy to fly and are being purchased by people with no modeling experience or aviation experience. As a result, they will continue to be used cluelessly and recklessly about anywhere. Those who have RC experience, for the most part, have an awareness of when and where they should be flown.
As a medical helicopter pilot I am keenly aware of the potential to interact with them. The crews are briefed and we are on high alert when flying freeway accident scenes where some idiot may be trying to get a "scoop," for the news.
Some of the stories I'm reading about airliners seeing them are likely BS . Even the largest available ones are not very big and would be hard to see.
Fortunately the newest versions are being equipped with ID chips from the manufacturer and will be registered with them. At least the manufacturers are working to police their industry.
In the meantime, always be aware. It is unlikely however that you'd never see one even it is very close.