The lack of operator precedence has no relationship with the mandatory use of parentheses. For example the APL syntax for expressions, which I prefer, is that

The lack of operator precedence has no relationship with the mandatory use of parentheses. For example the APL syntax for expressions, which I prefer, is that there is no operator precedence. The operands are associated to operators strictly from the right to the left, regardless which operators or functions are used, which is a much wiser choice than the reverse traditional order of evaluation. No parentheses are used, except when they are needed to modify the default evaluation order.