The contact with you after the course is not unimportant.
You have now received a brevet and want to go diving. Many diving schools are interested that their students exchange telephone numbers and go diving together – often in connection with the diving school.
Unfortunately this is not always possible.
A good diving school has a club with it, which makes different diving offers and gives you the possibility to participate in so-called trips. This is usually the best way to get started. There are day trips and week trips.
Every instructor is looking forward to your feedback. He should ask for praise and criticism and be able to deal with it professionally.
I admit this is not always easy.
For me this is a very important part of the course, because only through your feedback can I develop my students in an orientated way.