@mswkim We do not recommend sharing account info with other people or log into to other peoples account to buy them Gold. This could create situations in which we wouldn´t be able to identify who bought content in the game. Therefore it would limit our ability to give support and/or help if something goes wrong during the purchase.
Personally, I would recommend buying your friends/family gift cards for the respective store (if they do have their own account there) where you can download Catan Universe. E.g. there are gift-cards for iTunes for 5$/€. Your friends/family can then go ahead an purchases the Gold themselves using the Store credit from the gift cards.
It is not possible to transfer Gold from one account to another. This is due to the same reason we laid out above.
