Do soccer players prefer soft balls or fully inflated ones?
Soccer players require a fully inflated ball. A fully inflated
ball can be kicked farther and rolls farther. Ideally you should
use a pressure gauge and inflate to the maximum pressure listed on
the ball. If your pump doesn't have a gauge, if the ball has just a
little give when pressed with your finger tips it is close enough.
If you can't make a slight indentation with your finger tips, it's
over inflated. If you can make over a half inch indentation, it
needs more air. A properly inflated ball seems hard for younger
players, but they're not going to hurt their foot if they are
kicking properly.