Updated for 2023
This guide is aimed at people who want to get the achivment of having 50 of each social class.

So social classes are just like children the bigger they grow the bigger the needs.

Person assigned to a job will slowly change it's class based on the job prestige or more like whatever the dev wrote in the code, so here is the code:

Colum: 7
Id Keyname Name ParentBuilding Contribution Hint HumanClass
0 Worker PROF_Worker None 0 PROF_WorkerDesc Peasant
1 Carrier PROF_Carrier None 0 PROF_CarrierDesc Peasant
2 Lumberjack PROF_Lumberjack None 0 PROF_LumberjackDesc Peasant
3 Gatherer PROF_Gatherer None 0 PROF_GathererDesc Peasant
4 Forester PROF_Forester None 0 PROF_ForesterDesc Peasant
5 Hunter PROF_Hunter None 0 PROF_HunterDesc Peasant
6 Fisherman PROF_Fisherman None 0 PROF_FishermanDesc Peasant
7 Quarryman PROF_Quarryman None 0 PROF_QuarrymanDesc Peasant
8 Miner PROF_Miner None 0 PROF_MinerDesc Peasant
9 Farmer PROF_Farmer None 0 PROF_FarmerDesc Laborer
10 Herbalist PROF_Herbalist None 0 PROF_HerbalistDesc Peasant
11 Blacksmith PROF_Blacksmith None 0 PROF_BlacksmithDesc Peasant
12 Innkeeper PROF_Innkeeper None 0 PROF_InnkeeperDesc Merchant
13 Tailor PROF_Tailor None 0 PROF_TailorDesc Peasant
14 Baker PROF_Baker None 0 PROF_BakerDesc Laborer
15 Miller PROF_Miller None 0 PROF_MillerDesc Laborer
16 Trader PROF_Trader None 0 PROF_TraderDesc Merchant
17 Teacher PROF_Teacher None 0 PROF_TeacherDesc Merchant
18 MedicineMan PROF_MedicineMan None 0 PROF_MedicineManDesc Gentry
19 Cleric PROF_Cleric None 0 PROF_ClericDesc Laborer
20 Jeweler PROF_Jeweler None 0 PROF_JewelerDesc Gentry
21 Potter PROF_Potter None 0 PROF_PotterDesc Peasant
22 CandleMaker PROF_CandleMaker None 0 PROF_CandleMakerDesc Laborer
23 Distiller PROF_Distiller None 0 PROF_DistillerDesc Laborer
24 Carpenter PROF_Carpenter None 0 PROF_CarpenterDesc Laborer
25 MintWorker PROF_MintWorker None 0 PROF_MintWorkerDesc Merchant
26 Mason PROF_Mason None 0 PROF_MasonDesc Laborer
27 Guard PROF_Guard None 0 PROF_GuardDesc Peasant
28 OilMiller PROF_OilMiller None 0 PROF_OilMillerDesc Laborer
29 Perfumist PROF_Perfumist None 0 PROF_PerfumistDesc Gentry
30 Dockworker PROF_Dockworker None 0 PROF_DockworkerDesc Peasant
31 Burner PROF_Burner None 0 PROF_BurnerDesc Peasant
32 Glazier PROF_Glazier None 0 PROF_GlazierDesc Merchant
33 PaperMaker PROF_PaperMaker None 0 PROF_PaperMakerDesc Merchant
34 Binder PROF_Binder None 0 PROF_BinderDesc Gentry
35 Scholar PROF_Scholar None 0 PROF_ScholarDesc Gentry
36 WeavingWorker PROF_WeavingWorker None 0 PROF_WeavingWorkerDesc Laborer
37 Dyeworker PROF_Dyeworker None 0 PROF_DyeworkerDesc Laborer
38 Agriculturist PROF_Agriculturist None 0 PROF_AgriculturistDesc Laborer
39 PrisonGuard PROF_PrisonGuard None 0 PROF_PrisonGuardDesc Laborer
40 Taxer PROF_Taxer None 0 PROF_TaxerDesc Merchant
41 Ambassador PROF_Ambassador None 0 PROF_AmbassadorDesc Gentry

it should be easy to read.