The reason why, or at least one of the reasons why, [there would be other reasons also , like being lied to] the students marched is valid. Some of them, or/and future students will not be able to afford to go to uni.
Politicians are mostly very well off and have no concept of just not having the money. To them it's just a case of paying the extra, and the figures in their bank accounts change.
The cost of housing is ridiculous, the banks making heaps from all the interest payments. Many students know that they haven't got a hope of buying a house in the future, and ending Uni with a large debt would just makes this worse.
Meanwhile the government spends heaps of money being violent in Afghanistan and Iraq. They then condemn the students for being violent.
We are not separate; humans, animals, this earth, our environment and all living things; we are an entity, we are one, and it is only with the recognition of this unity that we can achieve our full potential for peace, fulfillment, sustainability and justice.
Awaken, dreamer, and realise the dream of all, as one.