In 2021, the definition of "cool" was strictly segregated by age groups.

: Starting in 2021, the Kurikulum Merdeka (Freedom to Learn) was introduced to provide more flexibility and focus on character building rather than just academic knowledge.

: Students entering SMP (ages 12–15) were categorized as being in the early adolescent phase, experiencing rapid physical and psychological changes that influenced their entertainment preferences. Entertainment & Digital Trends

Interactive tools like Wordwall and other web-based games became a primary way for SD students to engage with learning during the 2021 remote-schooling era.