Is it necessary to show your feelings on social media?

Or is just a way to draw attention and feel validated by the public or those emotions areb etter keep them to yourself or only your close people and noone has to see you how are you feeling

For instance like to show how happy, sad, angry, excited, etc you are about something

I have a second grown up cousin who just travelled to Disney with her mom for the very first time. So she filled her social media accounts with many photos of this trip and so does her mom. She is also the type of girl (the second cousin) who post everyday mirror selfies each morning and caption some word about it. Also when she goes tothe gym the same, mirror selfies.

The irony of this second cousin and her mom is that each time they both take a overseas trip (individually) they load their accounts with photo trips but the irony here is that before the trip they dont tell anyone about the trip beause they say "this is something private and noone has to know anything or to question me, they have to mind their own business" but then BAM!!! they take the trip and start posting photos of their trips on social media!! isn't that hypocritical?

Is it necessary to show your feelings on social media?
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