Taking a picture of yourself doesn't make you vain or narcissistic. We should be able to feel good about our appearance and show it to the world without criticism. 

 Let me tell you my past ~

When I was small, I love taking a picture of myself because I feel good about myself. Then, there was this time someone commented on my picture and said "narcis". Not only that, you also said that I use too much filters (like dude, what's wrong? Didn't u use filters too?) and so on. And you compare me with someone who's really popular and very beautiful unlike me. You've caused me sooooooo much pain. I didn't do something bad. It's just a selfie. What's wrong about it? It's like u never take a picture of yourself. Come on bruh.. :"