I am not a fan of sltos, but reading this thread I have learned many things, the RTP was something that I did not know very well, I had a lot to learn because when I played for the first time I lost money and I did not like it, I am clear that one can lose money, but not as fast as the time I missed it, I didn't have luck but I didn't know how to play, I still don't know how to play the slots very much, but this thread It clarifies a lot, the educational and parade thing is something that doesn't make much sense, one can educate oneself with articles and with everything that has to do with the things of the games. Slots are the most popular games that I have seen so far, but you still have to be very careful.
RTP is no longer a strange thing in slot gambling, because some people think that this RTP helps them convince them of the slot game they want to play, where they can see the game they want by looking at the RTP first, if the RTP shows a high value, usually they think the game is good, and conversely, when the RTP shows a low value they think the game is bad so winning will be difficult to get, but in my opinion whether the high or low RTP shows the value in one game has no influence at all.
Slot games are games that in my opinion are the easiest to play and also easy to understand because our job is only to set the bet amount and just click, the rest depends on luck which will give us a win or not. It's true what you said, slots are the most popular game, especially now that there is online slot gambling where more and more people are interested in it.