Other examples I can think of (from my Gen Z experience, growing up in SoCal):
- Elementary school: Making custom action replay codes, hacking game saves with programs, CheatEngine/memory/hex editor and following YouTube tutorials, Javascript "document.contentEditable=true" hack and changing stuff on websites, pressing F12 and changing random javascript code until something interesting happens or breaks.
- Middle school: making sites on Weebly/freewebs, embedding chats and flash games on them, sharing them during computer class
- High school: Making PHP sites/vbulliten/Newgrounds/flash games, later iOS apps
I wasn't the only one doing these things. There were always like 3 other kids like me in any classroom that would do the same things.
Most of us ended up becoming passionate SWEs, besides one that became an accountant.