Because people would be able to grow it in their homes.

But that's no reason.

The government dont want to look like the idiots they really are.

They've been feeding us all this propaganda and if they legalised it they'd have to explain to the country they were lying the whole time, and people wouldnt trust them anymore. People wouldnt vote. The government would go tits up.

They just dont want to admit they're wrong.