obtaining old charms?
So, outfits from old rifts always become purchasable a certain amount of time after the rift ends, so no one is really left out, but what about charms? Granted, I dont think anyone would actually want the common and uncommon charms, and some people dont care about charms at all, but hey, some people do, and the rifts have had some charms that are very fun or add a bit of lore flavor to specific characters.
the "vinyl dolls" that survivors get in each rift in particular are things I feel like I've missed out on since I didnt start playing till the 6th rift (thankfully I didnt miss that one since Yui's my favorite character). maybe you could keep the iridescent charms unobtainable since those are like the special rewards you get for going all the way through the rift, your "I was here for this" bragging rights charm, but I feel like everything else (kind of) matters to people who appreciate the lore stuff.
I also know there's some precedence for this; for some reason my game came with the little 2019 Christmas Tree charm even though I wasnt playing till the beginning of last year, and the Dwightcrow charm was brought back for last year's Halloween (but man, as far as halloween charms go, I would've been much more excited for blighted pumpkin than dwightcrow...)