It can take a while to learn how to get the best use out of fb, but I started using it originally to stay in contact with family all over the world. We 'speak' far more often than we would if we had to pick up a phone. Also now that my daughter has children she posts photos of them most days, because we only see each other three times a year. You can learn how to hide adverts on your page, block twenty zillion dogs that need rehoming, block your mother-in-law from seeing when you are on fb so that she doesn't always phone just as you are settling down for a session
but you have to be brave and prepared to click on a few things to see what happens. There is a help section, too.
My son speaks an entirely different language on fb, but my daughter stays the same, unlike many of her friends. I have a beautifully-spoken niece but can't understand a word of what she posts.
I have a friend who wants to be able to keep up with her son when he goes away to Uni this year, I am going over to give her a lesson some time soon. I think the worst aspect of it is that, (apart from its efforts to advertise) like many other sites recently, its tools are not all visible until you hover over them with your cursor.