At least this is a quick way to find out if they will even be decent students: if they cannot exercise basic courtesy on whatsapp, then they absolutely won’t do it in the dojo. I have a message that automatically pops up saying something along the lines of “I am enjoying family time, I will get back to you during business hours” and yet there is the audacity again to send me voice note after voice note, or worse, the passive-aggressive “???”when I don’t answer.