If the balcony is facing the door or kitchen, curtains can be pulled for a long time as a barrier. Don't go in and out of the door directly facing the balcony, forming a so-called "heart-piercing", it will be difficult to gather money at home, and there will be things that break the money.
Solution: put a porch cabinet to block the gate and balcony, and put a fish tank at the entrance of the gate (if you drink water, you can use a screen instead of a fish tank). It is also feasible to set balcony windows to block the balcony or plant potted plants and vines and draw curtains for a long time.