To ask to join a group chat on whatsapp

[Sundaycoffee]

Group of friends from school (7 of us, now in our 30s)
We meet every 2 or 3 months as we are all spread out now, but for whatever reason I seem to be the only person not in the group chat. I can't place any particular reason why I wouldn't be included but I'm not. It could be something as simple as they set it up all together when I wasn't there one time or perhaps something else. As far as I am aware I am always included in their meets as they always refer to the "last time" we all got together which I was invited to.
They openly talk about conversations they have in the chat in front of me almost as if they forget I'm not included in it and due to this sometimes I feel like I'm the last to hear news etc.
Would it be weird to bring this up? I was thinking of mentioning to my closest friend in the group in a very casual way but is this too awkward?

Not awkward at all, just say - hey can you add me to the group chat

Just ask. Though it sounds like you have an excellent situation. No inane WhatsApp chatter but still get invited to meet ups. Win win. Do ask if you want in though.

Maybe at the next meet up ask who the admin is, if the person you ask isn’t admin it can be pushed into the ping grass.

Just ask but I can't believe that they haven't realised you're not on there themselves

They openly talk about conversations they have in the chat in front of me almost as if they forget I'm not included in it and due to this sometimes I feel like I'm the last to hear news etc.

This would be the time to ask to be added.

Yes - just say.

But I think you're crazy, OP! I've just left 8 different WhatsApps which I joined on the understanding that they were for info only...but in fact was bombarded with trivial comments, jokes and memes all day long until I finally cracked and said 'Enough!''

I've told them I'm on email if there's anything important.