When I started using Facebook back in 2009, I was on it multiple times throughout the day. I signed up because hey, "everybody" was on it. People pestered me to join it.
I'd Scroll through the timeline, liking people's posts, commenting on people's posts, and making status updates. For hours, not minutes.
Even when I was out in town I'd visit the Apple shop, login to Facebook on their MAC computers, and repeat the same process as mentioned above. Because I didn't have a "high-tech" smartphone back then. It would have been worse otherwise.