So the problem is that in rides like elevators and observation towers peeps won't get off the ride once it is over; why does this happen? Peeps on the ride are thinking "I want to get off (ride name)"

I have another issue too, roller coasters are not popular in my park, it doesn't matter if they are intense or not, not a lot of peeps will ride them. I remember I set up my park in scenario editor and I chose the option that makes pool complexes popular (I don't remember the exact name of the option but it is something like that); the water park in my park is extremely popular, for that same reason I think, but does that affect popularity of the rest of the rides?

Try making a calmer coaster or a kiddie coaster and they might ride it.

I don't know why they won't get off. Make sure there is an exit and a path leading to it that somehow connects to the entrance with only paths.