Badenov
SOC-12
So, a realistic breakdown of social classes is probably beyond the scope of an RPG. If you feel the need badly enough, I guess you can go with the above system. I have a 4d6 Social system where the 4-16 results are mapped to values from 2-12 in rough proportion to the actual spread of society (according to a college sociology website I found).The 2D6 roll in CharGen is for a typical Traveller (i.e. PC or special NPC), who are unusual. If you assume that 2D6 is the standard for the Population for Soc, then you end up with a "Social Diamond" instead of a "Social Pyramid" where the vast majority of people are Middle Class, with the number of Lower-Class people as small as (or smaller, if you take into account the effects of CharGen) the Upper Classes and Nobility.
Social Standing is an Imperial-level Scale, in relative terms. The type of people who are Travellers are an unusual bunch - very few who are Lower Class (though there are many members of this Class, most do not leave their homeworld, and if they do, only for a specific purpose); Upper Class people can travel relatively frequently, but there are relatively few of them as a whole in the overall population. The Imperial-scale "Middle Classes" are somewhere in the middle relative to these two factors.
The 2D6 roll works fine for the STR, DEX, END, and INT characteristics, as it is producing a standard distribution about a mean-value norm across a species. But if you want a random generation method for SOC in a Society as opposed to one that generates the SOC of the typical Traveller, then you need to come up with a different generation system that is skewed toward the lower values.
If I need the SOC for an average random encounter (vs. a Special NPC), I will use one of the following:
GENERATING SOCIAL STANDING FOR RANDOM NPCS AND IMPERIAL SUBJECTS
DEFINITION of TERMS (sourced from T5 and other RPGs):
METHOD #1 – SIMPLE/QUICK METHOD
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METHOD #2 – GRANULAR METHOD
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That said, 2d6 is probably about right to create a range of 'interesting' encounters, and if you meet more kings than bums, bums aren't generally as interesting as kings. It's just worth being aware that you can't create a balanced spectrum of 'residents' with it. As was pointed out elsethread (I think), characters aren't just random citizens, they're the interesting citizens worthy of being brought to life by a player.