Disney+ started getting strict about password sharing in Canada last year, and now it's expanding the restriction to the US. According to The Verge, the streaming service has been sending out emails to its subscribers in the country, notifying them about a change in its terms of service. Its service agreement now states that users may not share their passwords outside of their household "unless otherwise permitted by [their] service tier," suggesting the arrival of new subscription options in the future.
The Verge says Disney+ told subscribers that they can analyze the use of their account to "determine compliance," though it didn't elaborate on how its methods work exactly. "We're adding limitations on sharing your account outside of your household, and explaining how we may assess your compliance with these limitations," Disney+ reportedly wrote in its email. In its Service Agreement, the service describes "household" as "the collection of devices associated with [subscribers'] primary personal residence that are used by the individuals who reside therein." The rule already applies to new subscribers, but old ones have until March 14 to feel its effects.
What's probably more likely is that the "everybody" that you heard from was an incredibly unrepresentative sample of people from a bubble of nerdy tech enthusiasts.
And those people, like me, probably did cancel.
I am still surprised more people didn't cancel since everyone I know who uses streaming services shares them, and most are splitting the cost.