Our daily live has been sucked up by social media. Most of us tend to check facebook, twitter, instagram numerous times a day. You can"t check your facebook, twitter or instagram account without someone posting a text or picture about what a great breakfast they have just had, how awesome their morning is, how good life is etc. I think it gives us a derived image of reality. I have noticed an increase in people who are starting to irritate themselves with seeing their "friends" lying on the beach, "having the best time ever!" with their boyfriend/girlfriend etc. It seems the social media platform has become a medium to show other how "good" life is treating you. However is reading about others daily experiences something that actually makes us happy?
You are totally correct about that our daily lives have been sucked up by social media. And indeed when nobody posts a picture of their meal for example, it would not be interesting. So everybody, who has a social media account, cooperates in that. However I do not agree that it makes all of us happy, by seeing people being happy you do not automatically become happy yourself. Therefore you need other people in a 'real' social life who cheer you up. And even though you see a picture of one of your 'friends' who is having fun (without you). Some people have those 'friends' or 'followers', but before they accepted their friend/followers request, they may not had a clue of their existence. I do not think that you should call those people your friends.
My English is not perfect, but that is not because of laziness, I am Dutch and not a native English speaker.