I've played FFXIV for years and spent 1,5 years hopelessly pugging 2/4 Savage and Ex Trials on my own with absurd time investment in proportion to the payback. In my first FC I was more or less told to my face "raiding is gated and we deliberatly keep people out to teach them their place and maintain hierarchy and imagined feeling of superiority".
Three consecutive days in PF to get Nidhogg, Sophia and Zurvan down with around 8 hours straight prog is a ridiculous investment if you compare it to my first week static clear on Deltascape or the six weeks I spent on Eden's Gate (which was three weeks too much imo). In contrast, Creator for me was cleared the week before echo and Midas I only dreamed about. I always find I get less than I aim for in FFXIV and getting into raiding always seems random and not "you get what you work for" and it leaves me exhausted.
The group I cleared Eden's Gate with also had no ambition or time to do new Hades Ex and I guess that was the final nail in the coffin for me. To me Ex Trials are Christmas and maybe the most fun PvE of the game in terms of time/challenge and supposed to be done impromptu with friends or raid group on just one evening and even this is too difficult to get done sometimes and I will never go back to three days 8-10 hours straight "Nidhogg mode" PF just for that. So no more raiding for me I decided.
In WoW I seem to always end up somewhere suited to my ambition level and skill and since I have a lazy side this means I do keystone master achievement for M+ and usually prog most of a Mythic raid tier at a leisurely pace (which in time investment is a lot more than 4 Savage bosses with a decent group) and that time invested is actually corresponding to what I get for it.
Your reply shows that 1. you already had a few friends to begin with and 2. that the raid scene is as random as I describe it and you can be lucky or not but our differing personal experiences prove it's not smooth sailing all the time.
I've also learned that some high end raiders have the same problems and feel anxious about getting that group if they take a break for a few months or miss a tier and they are subject to this randomness and hierarchial thinking just as much as me with the difference they at least improved their chances just like you have by finding that banana peel and the right people once upon a time.
This anxiety in turn fuels the elitist mentality and it serves more purpose than just ego inflating for first time MMO-ers or washed up former WoW-raiders wanting to be big fish in small pond. It gives an actual network to those seeking to hold on to that windy, shaky peak where chances of getting a good group is higher. This is why you see the elitist linkshells, Discord channels and Twitter mentality with people scratching each others backs like freemasons almost. It's absolutely exotic behaviour in the eyes of someone only used to for example the WoW raid community.