Children also should take in the conservation of fuel; because it is our duty to conserve the fuel,
As it is depleting,
As it is present only in a small amount.
We can conserve it by using,
Battery vehicles instead of polluting vehicles.
By using public transports more ans more instead of using bikes, cars, etc...
Children should take part in this, because f the fuel is not conserved, in their future, there will won't be any fuel for them. So, the involvement of the children is also necessary.
Hope this will help you.