Not giving away any spoilers since I don't know when the right time to do that is yet 😛
but I have to say watching these 3 seasons of this show, I think it is one of the best coming of age and growing up stories I can remember. It's not just getting older, but it deals with real life stuff of what it actually means to grow up. So many stories kind of just focus on a very narrow time period or just show kids become adults and that is "coming of age" but never show what kids actually go through. It's one of the issues I hate some some YA stuff. Just offhand and not related to any specific story so don't read into this, but just because someone ages 8 -10 years but they are the same person doesn't really show growth or growing up. Just aging which is why some stories just are there and never connected with me.
Ok, yes it helps this is takes place in the 80s which helps for me, but really it shows...ok I'll put this into spoilers and some of the spoilers are major and deals with the ending so click at your own risk