hello can anyone tell me what are the uses of daycare .is it really worth

Umm daycare as we have seen in pokemon red/green is a facility where u can leave your pokemon and when u take it back after sometime it will be grown in levels. But as in creed the daycare rates are very much high so i wudnt suggest using daycare for training your pokemon.

Day care allows you to put your Pokemon in there and let them train it for you, only for a certain price, but I wouldn't recommend you doing it because it's probably cheaper to pay someone else to train for you instead.