I'll miss playing the gachas. I'm an adult and I have full impulse control, and not addicted personality disorder or anything. I have spent a lot on gachas in the past, but never more than I was planning to spend in advance. I totally get though, that some have spent more than they planned to, and that for some, it could become an addiction. There's a setting in account preferences where people can limit the amount of money they upload to SL, and I guess that's something that not everyone has done.
The fact that the EU is putting an end to lootboxes in all games is not something LL can be blamed for, obviously. A huge chunk of SL's player base is from EU, and from what I have read in this thread, it seems like many states in the US are following in those footsteps. The one thing I will miss the most, is stuffing my friends inventories with random gachas. Sure, I can just buy a giftie instead, but it's not the same. And there's nothing exciting about a normal vendor.
LL has to follow the law, and that's just the way it is, but I'll still miss the gachas.
Just my 2 cents.