It seems to me that ~90% of the members who are participating in this thread want to set up their own gear, not 90% of SB's members. Quite a few of this thread's 90 percentile also love to chime in on the tipping threads, about how all they need is a ride to the site and a Captain with rescue training.
This is the New Diver forum, not the Infested Swamp Hardcore Divers forum. There are plenty of divers on SB who post frequently and have no desire to even dive in waters below 70 degrees or vis less than 40'. You folks really seem to get hot under the collar when it seems the truth hurts.
I doubt there are many dive boat crew that are setting up and changing tanks because
they think it's the thing to do. We do it because the Boss tells us that is part of our job. If I was not doing the job my employer demands from me I would not have this job. If I was exuding attitude that generated customer complaints I would not have this job. If I was hurting the tips for the days I worked my coworkers would tell the boss to get rid of me. I don't care if a guest demands to set up their own gear, but all of the small number of such divers I've encountered have been unpleasant people to interact with. Good to hear that there are possibly pleasant divers who demand the crew not touch their precious gear!