Shell script split on spaces (or the values of $IFS) by design. For example, use null delimited values, because a variable (like IFS) cannot contain null bytes

Shell script split on spaces (or the values of $IFS) by design. For example, use null delimited values, because a variable (like IFS) cannot contain null bytes. Is this a workaround? I see it as pure logic. Even understanding howto handle them, helps to understand the internal design of the shell and common external utilities. Remembering is hard? not a "shell" specific issue... I use it daily and maybe that's why I don't face the same problems that other see so clear.