In 10+ years I was active in sessions, most clients did not want or expect aftercare. For most, especially hourly clients, they were ready to get back on with their day afterwards. The session was a quick break from reality for them. Longer sessions, where emotions were running deep, would often have a time afterwards to come back to earth. I do believe the expectations and needs are different among professional clients who are just ducking out for a bit of fun than lifestyle folks who are probably playing a deeper level. Just my guess. If you end up dabbling in the professional scene, you will find client's needs and desires are all over the board. In my experience, there wasn't a set protocol.