For loops are not easier or more convenient than fold.

    fold sum 0 collection

versus

    acc = 0
    for x in collection:
      acc = acc + x

or the even worse

    int acc = 0;
    for(int x = 0; x < collection.length; ++x) {
      acc += collection[x];
    }

You can read one line and know exactly what's happening in the fold example. In the Python and C++ examples, you have to scan more lines and there's way more opportunity for typos.

A for loop gives you better memory management and speed, but the tradeoff only makes sense to me if you're doing embedded work or something. Otherwise, eat the .000000000001% speed loss to reduce the risk of logic errors, typos, etc. and to improve developer ergonomics.