I know the laws are different everywhere. I don't have to wait for buying a gun here.

Waiting periods are sold under a false premise.  That is, that a person who intends to hurt another in the "heat of passion" will "cool off" and no longer be a threat if they are denied the purchase of a firearm for a day, three days, a week, or a month. 

 

Of course, if that person who wants to do another harm is blocked from access to a firearm, what's to prevent them from using a knife from the kitchen or a ball bat?  Answer: nothing.

 

What waiting periods do, however, is prevent potential victims from obtaining the one thing that could save their lives or the lives of their loved ones from an aggressor.  That tool is a firearm.

 

The proponents of waiting periods have a lot of innocent blood on their hands where ever this kind of law is the case.