Kids to stay longer at school

I think it is a very good idea for kids to stay longer at school.
It's a help for them to learn more and exercise and also for the parents that working for long hours.
The parents will be happy because they are not going to pay after school care.
And it also help the kids some activities at school than coming home and play with iPad, watching TV and computers. By doing that the kids will be very good in writhing and spelling also.
I think when the got good starting in kids garden and primary school it will help them when they goes to secondary and high school.