Why do groups and societies stratify?

Groups and societies stratify primarily due to differences in access to resources, power, and opportunities, which often stem from factors like socioeconomic status, education, race, and gender. This stratification can create hierarchical structures that influence individuals' social mobility and quality of life. Additionally, stratification can serve to maintain social order and cohesion by establishing roles and expectations within the society. Ultimately, the dynamics of stratification reflect broader historical, cultural, and economic contexts.