I don't really think it is addicting but as with all things, we must manage our own time and money.
There are a lot of games and hobbies out there, everyone typically has some that they play or do. I agree that it's a creative outlet and can be a stress reliever when dealing with complicated things in life.
As adults at least in most societies now, we don't have a lot of outlets for creativity as others mentioned. I guess I like being able to do what I want and being able to come up with stories regardless of whether they actually entertain anyone else. I've occasionally talked on here about a few but I get to experiment without being edited by anyone else. You can also spend time on little "boring" details that wouldn't exist in a book or show if you want to. Want to spend hours just editing the likes and dislikes of 300 characters? Ok. Want to just build an island resort or new house all day? Ok. Make a random townie playable and come up with a whole life for them? Fine.
Anyway, I think it is fine. I guess I've played multiple versions (I'm not that old, I was playing some games when I was a kid & I like history). It's really up to a player what they want to spend. I enjoy it but take breaks and sometimes I've disappeared from the game even for years. I had a break for some months earlier this year and I actually disappeared for over a year not that long ago for other commitments. It's nice that it's still around and I can come back. When I pick back up, I have a good time.
So far, I have not thought that it is too much like games that are heavily micro-transaction-based because anything is optional and there are sales. Watching a film isn't replayable and I don't tend to reread books but I can play a game as much as I want. I still watch films and read books but I consider gaming to be in that category. I'm not fixated on the total cost since 2014 since some packs were gifted to me and I've done some sales. I don't think about how much I spent on books or films since 2014.
When I came back recently, my first thought was that it's time for an update but as I got back into it, I had fun. It's true that if the series completely starts all over, it'll be a jump though that has happened before. I took several years off between TS3 and TS4.
Do what you want, gaming is fine, just make sure that you are actually living your own life as well. Sometimes real life can be overrated like last year for a lot of people. I have other hobbies like hiking, socializing (when we actually can), travel (when we actually can), reading which I should do more, learning skills in various classes, and "real lifing". I could pick up a few more hobbies and sometimes I concentrate a lot more on real life than games but when I do, I have fun. I think it is good to not completely lose our imaginations. I've been on here because it's nice to know that other people are like that as well.