So you've been playing for 5 years, yet are oblivious to the slow decay of players exiting this game, and how it affects your city? You're not paying attention!
Ted and Ketebo Chocolatery can solve that. They first came out originally in Dec 2022, and they made Nutcrackers. In early 2023, I"m sure that the reality of non-polishing/motivating friends, neighborhood members and/or guildmembers started to have a palpable effect on your daily collection, sooo.....
Inno once again - REPEATED the Ted and Ketebo buildings in the Winter 2023 and made the nutcrackers even easier to get. AS well, they upgraded it to be more fragment productive towards making MASS SELF AID KITS.
Additionally - (and quietly) they started delivering more self-aid kits as incidents, daily specials, daily challenges, auction dealer, and in the reward item list for event buildings.
By now you should have taken advantage of those critical buildings being offered twice, and like the rest of us - have built out a complement of 10 Joyous Nutcrackers in all our cities so that we're self sufficient and not ever going to be beholden to people that want YOUR aid, but won't give you one back.
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You can solve your own problem - good city planners do.