This moment when you tell your best friend about something you're excited about and you realize your voice sounds stupid. That frustration when it seems that the other person is just not willing to understand you when you try your best. That moment when you scold yourself for dropping that glass and being such a clumsy person. This moment when you fear entering the room full of new people as you can literally imagine them laughing at you. That fear of saying what you really think because you feel too insignificant for this. That moment when they say you should have a close person during a difficult day to make it easier for you and you know that a close person is the last thing that you'd wish for then.
That moment when the parent silences a 11 month old child who started screaming in excitement telling them their voice annoys them. That moment when the parent dismisses the child who is not yet able to speak properly. That moment when a parent shouts at the child who dropped something again while learning to grab objects. They moment when the 3 year old does something silly and their parents can't help laughing and look at each other for an absolution. That moment when the parents tell the child to shut up because they're actually talking about important things. That moment when the parent comes to the child to hug them because the parent feels lonely.
Being an adult to a child is easy, being a parent should require passing an exam.