How to explain the difference in kit, partial mash, and full mashbrewing using a pizza

We home brewers face a problem when trying to explain the different methods of home brewing to our non home brewing friends.   ........"Kit, partial mash, and full mash", you say.  "What's the difference" they say..

The challenge is to get the message across without the recipients eyes glazing over.  If we can achieve this we have a shot at the holy grail of convince them that they should have a go themselves and make a brew.

 I have a plan that seems to work.. "think of a pizza...I say...

A kit beer. You go to the store, buy a frozen pizza, put it in the oven.   You get something that does the job.  It's pizza, it fills the hole, and you get the toppings that the makers thinks you want.

A partial mash. You got to the store, buy your frozen pizza, cheese and tomato it is.  While you are there, you get a little pepperoni, a chilli, and fresh basil. When you get home you have a customised pizza.

Full mash. You start with some to tomatoes, a bag of flour, and some yeast, and anything else you want.   After some work, some practise, some sweat,  you have exactly what you are looking for.  The beer you have been waiting all your life for.....well at least the satisfaction of creating the magic with your own hands...  

Beer kits are like frozen pizza, a little extra money and the quality goes up.  A little extra money and some good beer can be made from a kit.   Some partial mashes can be exceptional, just like a semi-self created  pizza.  

 With a full mash you can use a cooler box and a big pot, or create a micro brewery in the garage.  Just like some people will build a log fired pizza oven in their back garden. The most important thing to remember is make the pizza you want to eat with the equipment you have.  If you live in a one bedroom flat with a small oven, then make the best frozen pizza you can.  If money is no object and your garden is the size of Wembley stadium then build your wood fired pizza oven.