You weren't asked to agree or disagree with the premise. You were asked whether you think it will become more common in the future, not whether you think it happens now. It was presented as a fact.

Hello Taku, Your English writing is excellent. Below are a few minor corrections: I agree with the statement that some customers ask delivery companies to put packages by their doors instead of recieving them directly. ("Receiving" is a common spelling error. Remember, "i before e, except after c".) I have two reasons. (You can use a period or a colon here.) First of all this service is helpful for customers. (Place a comma after the phrase "First of all,...) They have to wait at home for the packages to arrive. (They would otherwise have to wait at home...) If delivery companies could put (or leave) packages by their entrance,they do not have to wait at home. Second,the delivery campanies can reduce delivery costs. (Secondly, ... companies...) If customers do not stay in their home, drivers need to go (return) to the same house again. For the reasons that I mentioned this service is going to mecome (become) common in the future. Excellent writing, Taku. Well done! David