I think some should indeed have stones, clubs, and the like; I don't think it's reasonable to expect that every poor farmer keeps an arsenal in his home. Even today, in many parts of the world, people will throw stones at soldiers--and frankly, our real-world armies are a good deal more competent than their Star Wars counterparts are. At the same time, I do think it's equally unrealistic to expect that none would have weapons. So would something like this work for the farmers (and for trainee_peasant, and tax_rebel)?
["farmer","Farmer","Farmers",tf_guarantee_boots|tf_guarantee_armor,no_scene,reserved,fac_commoners,
[itm_q2,itm_DH17,itm_laser_bolts_red,itm_tusken_rifle,itm_laser_bolts_orange,itm_laser_bolts_yellow,itm_cleaver,itm_iron_staff,itm_quarter_staff,itm_sickle,
itm_vibro_blade2,itm_vibro_blade3,itm_club,itm_stones,itm_leather_cap,itm_leather_apron,itm_linen_tunic,
itm_coarse_tunic,itm_jacket_open_c,itm_vest_closed_a,item_vest_closed_b,itm_vest_closed_a,itm_leather_boots,itm_nomad_boots,itm_wrapping_boots],
def_attrib|level(4),wp(60),knows_common,sw_man_face_1, sw_man_face_2],
(line breaks added to format it a bit better)