People who like to have plants in their house,will usually purchase new plants if the existing plants will wilt and dry
Realizing this the plant sellers have developed a very effective technique to increase their plant sales
They are having large holes in the grow bags where they grow their plant
If the plant is watered, most of the water will flow away through the grow bag, almost no water is retained.
So if the plant owner does not water the plant for a few days because he or she is busy, or is on a holiday, all the water is drained away, and the plant will wilt and dry.