Lack of gun control means:
More gun crime
More accidental gun deaths
More gun suicides
More police shootings
Increased likelihood of an armed intruder in your home.
The U.S. has plenty of gun control and these problems are at a tolerable level and most of them dropping. Those which are not dropping will only get worse as citizens are dis-armed.
The main problems which remain tend to be in localities where there is an unhealthy amount of 'gun control' such as Chicago. For some reason the gun-grabbers want to take the same laws which demonstrably don't work from these localities and apply them across the nation. It makes no sense until you understand who is funding the gun-grabbers and the propaganda. Then it all falls into place.
Proper gun control means:
People with mental health issues do not have access to guns. Criminals do not have easy access to guns. People should not need have to have guns for "protection". (It would imply that criminals have access to guns)
Again, we already have such controls in the U.S. and they are working fine.
Criminals will always have easy access to guns and it will be increasingly easy going forward. This due to such technology as 3D printed guns. The biggest problem is that governments flood certain areas with weapons for destabilization operations. Afghanistan, Libya, Syria, etc are prime examples. Mexico as well. These weapons wash around and are picked up by whoever has need for them. The problem is very serious in places like Mexico which have huge problems with drug cartels. Mexico has very strict 'gun control' which makes it very difficult for normal people to defend themselves against criminals (who sometimes wear police uniforms and have a government issued badge.) In the U.S. where normal people, who always outnumber criminals, have the ability to be somewhat equally matched the problem is nill in most areas.
A perfectly sane person should be able to have recreational use of a gun. Tank ? Hell yeah - I want one of those.
We have that situation in the U.S.. If you are a responsible person (and rich) and you want to jump through the hoops, you can even have a tank. There are weapons such as these in the hands of collectors.