All that will be left on FB is old people sharing propaganda posters?

Facebook’s 12 to 17-year-old demographic declined by 9.9 percent in 2017
eMarketer has made the following predictions for Facebook in 2018:

• A 9.3 percent drop for Facebook users under 11 years old. (Reminder: Facebook’s terms of service require that users must be 13 years old in order to create an account, though it’s easy to get around that.)

• A 5.6 percent decline in users between 12 and 17 years old.

• A 5.8 percent decline in users between 18 and 24 years old. This is the first time eMarketer has ever predicted a year-over-year decline in usage for this age group, though it has happened before. In 2016, Facebook’s user base for 18 to 24-year-olds fell by 1.5 percent.

The above forecast was published a month ago, before it was revealed that Facebook is a global spying operation and propaganda platform.
Source: REPORT: Facebook Losing Younger Users at Rapid Pace | Breitbart
I prefer not to use Breitbart’s borderline fake news site as source. However, the link to the original AFP article was not working.