>> Arbitrary rules are never a good thing.
Any parent, ever - will be able to tell you this is a fact.
If you think arbitrary rules can stick, wait until your kid hits the 'why'/'how come' phase.
In this case, the government is the parent making an arbitrary rule and the people represent the 5-year-old kid asking why.
Parent: 'You can drink, but you can't do cocaine.'
Kid: 'Why?'
Parent: 'Because cocaine is bad for you.'
Kid: 'But why? Isn't drinking bad for you?'
Parent: 'Cocaine is worse.'
Kid: 'Why?'
Parent: 'It's addictive and it ruins lives.'
Kid: 'But doesn't alcohol do that too?'
Parent: 'Well, yes...'
Kid: 'So why is cocaine so much worse?'
Parent: 'It just is! Just stop asking questions and listen to your parent.'
This kind of shit stops a kid from respecting their parent, because they trust their parent to know what's good for them, and to have reasons behind rules and restrictions.
Similarly, when the government starts making arbitrary decisions for us, but can't provide the logic behind it - and - worse - the evidence from the medical, scientific and psychology communities state the complete opposite - we lose respect for and faith in the government.