WHY THE APPLE II DIDN'T SUPPORT LOWERCASE LETTERS

Summary from the TLDR Web Dev newsletter

Steve Wozniak, being financially constrained, initially used an affordable $60 uppercase-only keyboard for his TV Terminal project in the early 1970s. This terminal became the input/output for his early computer designs, including the Apple I. While Wozniak later wanted to add lowercase support, the handwritten and hand-assembled code of the Apple I and Apple II, coupled with continued financial limitations, made implementing such a significant change too difficult.