It goes a bit deeper than that. Older people had to actively seek out news. They didn't have to option to go to a service operated by an global corporation that pushed the headlines to them. (Or, as I used to put it to my generation back in the day: grandma invented the computer. We simply use them.)
People subscribed with money to a newspaper. Which then delivered curated content right to their front door. They didn't go seek it out. Also, most of the newspapers are part of global corporations, even local ones.
Heard of them, and you're right about subscriptions to a degree and you're right about corporate ownership to a degree.
I say to a degree vecause there are some distinct differences. At least in my neck of the woods, major newspapers were owned at a national level. Some of the stories came from international corporations (e.g. AP), but what was published tended to be local editorial decisions. You also got the same news as everyone else who subscribed to or purchased single copies of the paper.
Contrast that to online news through social media sites. Chances are the editorial decisions are made in a different country, and there may not even be direct human intervention in choosing what you (as an individual) sees.
Unlike subsequent generations, boomers weren’t born with the internet, and they’ve developed habits that fall outside of the internet like reading physical periodicals and subscribing to cable TV that they’ve kept for the past 30 years.
All subsequent generations weren't born with the internet either. I guess it depends on your definition of the internet, but ARPAnet didn't start using TCP/IP until the 1980's.
That may hold water for some of Gen X, but it was still a key part of many of their formative years. Many Millennials literally grew up with it.
To be clear, I'm not saying that boomers aren't smart enough to use technology. It's just that old, comfortable habits are hard to break. Facebook for many of them is a safe, walled garden compared to the wild west internet.
Age isn't a reasonable excuse at this point. Common access to the Internet has been with us for ~30 years.