That is the biggest problem.
I changed the Netflix subscription from 3 screens to 1 because no one was watching it. No one noticed for 3 months, then suddenly two people wanted to watch different Netflix content at the same time and I was the biggest criminal ever!
I haven’t told them that UniFi monitors network traffic and there are still whole months that no one watches Netflix because then I will be accused of spying on them. (Which I technically am, but since I pay the Internet and streaming bills…)