I have always wondered.
Is a certificate enough proof that you are able and capable of doing and/or performing what is expected of you? Eg. you receiving the certificate after 6 months of lessons. Or you receiving your diploma at the end of a 5-school year.
Of course it isn’t! You have to prove it, not to other people but more to yourself, that you are. That you are loaded with that “power” your certificate or proof is shouting about you.
In time, I will prove my certificates true and correct.
Right now, these papers are important to make my family whole always.