It takes a lot more guts to walk up to someone and stab them then to simply point and shoot. I would also take the damage a knife would do and have the chance to resist over getting deleted from across the street. It's ease of use is what makes it so dangerous and casual.

Then the bobbies stop you and fine you for having a knife that you need for your trade job. It's a slippery slope. They won't stop at grabbing guns.

Now you get arrested for Facebook posts and saying, "I love bacon."

Take a look at the stats on knife crime. It's not bacon eaters doing it.