What kind of buildings are they? Why can’t my friends speed them up, why can’t I build more than 1 of each?
These buildings are quite like Cargo Port, College or University: there is crafting inside, they can't be sped up by friends and you can have only 1 of each.
Let’s call these buildings “Crafting productions” to make everything clear. And yes, Furniture Factory and Tailor’s workshop have their own differences:
Why can’t I produce some items ahead? I don’t even see them in the window.
The main reason is these items (Jacket, T-shirt, Bow tie and Chaise lounge) are rarely required. And this is the main difference between productions in Cargo Port and others: there's no need to store up Bow ties, T-shirts etc because they won't be needed very often.
Yes, this mechanic is new, but the game may change! We add some features that make game easier and handier (new shop interface, some pop-ups, even quest steps!), but also we may add some limits too: adding some challenge is a normal way to develop a game
Why do we have to produce some items now instead of collecting when they just dropped?
First, the game is changing
Second, when we added Post Office, we had complaints why do we have this building, “it's useless, it's not used in quests at all”. So, the idea was to implement Furniture Factory and Tailor's workshop straight in the game without any waiting (with decreasing the required number of these items in every quest they are needed).