you have to be 18 or older
There are a couple places to buy old antique Swiss Army Knives. Some examples include auction business such as eBay, Live Autioneers and Antiques Spotlight.
The best survival pocket knife to buy would easily be the Swiss Army knife, and the largest version that they make. This survival pocket knife has every tool in which a person could need in order to survive on their own in the wilderness.
One could buy a swiss army golf tool at the SwissArmyKnifeShop, Overstock, Amazon, and SharperImage. One could also buy a swiss army golf tool at Walmart.
Depending on which company you buy them from, they are primarily stainless steel. Not carbon steel. Stainless doesn't rust and it is much cheaper for both the buyer and the manufacturer.
believe it or not i have found them in Walmart , just recently too!(3-30-12) also pawnshops are often good for things like this.
The legal age to buy a Swiss army knife is 18+
18 even for a Swiss army knife but while almost all other states knife laws are nearly 2 pages ,loisianas knife law is a simple as thing with exception of jack knifes and switch blades or spring blades, a 3 year old can walk through town with a sword.(excludes federal law).
Target. Just bought one there Tuesday.
Watchesandbeyond.com. Here you can find a large selection of Swiss army watches for an affordable price so it would be easy to buy a large quantity of watches for your family.
Whatever they buy. Knives aren't an issue item, and soldiers buy them on their own.
This depends on which country you live in. Different countries have different laws. In the countries I am familiar with (in Europe) there is no minimum age. In the UK, some of the larger knifes are not available because they exceed the maximum allowable length. This includes the knife the Swiss Army actually uses, the "Soldatenmesser 08", which you can buy in Switzerland.
My personal recommendation would be the Victorinox Swiss Army Ranger Pocket Knife. It comes with many features and is fairly compact. A great place to buy one would be on amazon.com if you are interested.