What you are saying was true at some point in the past - but Linux has come a very long way since then, and the system UIs of many distributions these days are pretty slick, and do offer graphical settings windows for everything a non tech-savvy user ever needs.

Ask my 80 y.o., non-tech-savvy dad, who after struggling with Windows for years, is really happy with his Laptop running on Linux now. The amount of calls I get from him needing help with his machine has gone down to a fraction of what it was before.