Why is synthetic grass training pitches better kind?

Why is synthetic grass training pitches better kind?
First, on the artificial turf football can be played all year round.
Second, the cost of maintaining the artificial football turf is much lower than natural at much greater operational load

What does the sand in the artificial turf football?
The sand keeps the grass fibers upright and provides good drainage of rainwater.

In what sports can be played on artificial turf?
Artificial turf - great game coverage for various sports. For example, football, tennis, volleyball, golf and hockey.
Structure and filling of artificial grass can be modified in such a way as to best meet specific sports games, which will be held on the sports field. Artificial grass is ideal for multi-purpose (universal) use, so one can be carried out covering sports in several sports.