I have never shot raw as I cannot see the point . I want JPEG for my customers so have always shot JPEG large basic . Tens of thousands of wedding photos with no problems.
So if I did shoot RAW ..process it and convert to JPEG what improvement would I see? From what I understand the NX conversion programme is in the Nikon so the job is done.
Beside the hints above I just thought I write something because you claim you listen to old peope in order not to die in ignorance
IMO beyond the technical part that
@Steve explained already in depth and probably much better than most of us would be able to, there is still more to it.
I am not a typical example for a romantic person being into family, weddings and all this, I am not a pro phtographer and especially not at events, but I understand that despite the quick and dirty mentality in times of social media a wedding still something special and most people at least hope it's a once in a lifetime event and experience. If it comes to keepings and memories related to it they deserve to get the best quality and this also applies to pictures.
Some years ago my "almost" daughter (daughter of my girl friend) got married. When watching the photographer at the events I was impressed because he was really good in getting in touch with the people, find the right spots, moments, situations and scenes that usually make the difference. At the end it was absolutely infuriating to get pictures that turned out to be shot as JPG - not even particularly well - and then processed poorly if at all. Wrong colors,, burnt out details in the wedding dress, overdone sharpening, noise, ...
However, they couldn't be rescued because the originals were JPG ...
From this experience I can imagine that it is as likely to run into scenarios where bit depth and proper post processing make a big difference for an event photographer just as for a nature and wildlife photographer. Not sure but I think it was Henry Ford who said something lke "Quality is doing things right even if nobody is watching" and this also applies to time invested in post processing of picture. Delivering quality is in the long term the best and most effective way of self marketing, direct sales and building customer relationship, because recommendations are the best - and cheapest - advert you can get. If I were a pro photographer, one of the priority things to get there - beside taking good pictures of course in the first place
- is shooting RAW and do good post processing.
YES, I am old and YES, I was converted to be a RAW shooter really late myself, but NO, I would never ever step back and here we are talking just about my own pictures shot for pleasure. Whenever somebody asks me if I would shoot a private event I have to say no, as I am not interested in it and I know I wouldn't be good in it because I can't handle the people. But I always recommend to ask a bit more deeply about what the photographer is doing with the material after the event ... and to consider looking for somebody else if it sounds to JPEGgy.
Still learning every day about taking and processing pictures and always thinking of being too slow, I think that these days there is software on the market that allows workflows to be made so efficient that IMHO there is no excuse any more for shooting JPG, especially if making photos that others pay for.
However, in the end we are all different and have to find our way. May be in a few years time mankind is so accustomed to emoticons, and artificially created graphics of all kinds that the fine differences don't matter anymore and RAW becomes obsolete anyway. Maybe GIF's will then be the perfect solution
.