It depends on what you’re trying to do on your computer. No command line is needed for web surfing, checking emails, writing office documents, playing games, watching videos… It’s not too dissimilar to Windows in that regard. Windows also has the command line and the power shell. You can use it if you like, but you don’t have to. There’s other tasks for which you need it, though. For example fixing your computer might involve the command line. Or software development.
It depends on what you’re trying to do on your computer. No command line is needed for web surfing, checking emails, writing office documents, playing games, watching videos… It’s not too dissimilar to Windows in that regard. Windows also has the command line and the power shell. You can use it if you like, but you don’t have to. There’s other tasks for which you need it, though. For example fixing your computer might involve the command line. Or software development.