So what you are saying is since I am not a licensed welder but a programmer, I cannot own/use welding equipment. That I have no use for it. It may surprise you but I do, and I use it often on many of my own projects, I even use it to help out friends and neighbors. Not once have I cause an injury to other people and I have actually fixed many dangerous vehicles/property preventing injury and damage.
FYI I don't own an oxy tank for welding - I use that for cutting. I do have Argon/CO2 tanks for welding, and yes, they have been in my truck.
I also own firearms - legally in my state, I have a legal Carry Permit as well. I have use my gun in the past to scare off a group of 4 men trying to break into my home one night 4 years ago. If I did not have that gun, I am sure those 4 men would have got in to my house and I would not have been able to protect my wife and child. The police did not arrive for over 15 minutes.