Because I want to be left alone! In some sense, I am a teenager myself. I have my own domain and don't like to be interfered.I mean, I love them, but I'm not a talker and I like to do my own things whenver I have spare time; I like crafting, sewing clothes, browsing internet, watching Russian videos, etc...
One day or another, they will leave the house and I can have full freedom, alone.
Let's just savor the quiet time together.