There's nothing wrong with DIY jumpers, and for the neatest looking breadboards, you'll want to use them.
That said, sometimes you just want to be wiring ASAP. That's where pre-made jumper wires are really great. They're a little more expensive but you dont need wire strippers and they have these lovely grips.
We have these in a wide variety of lengths and configurations Usually, we like to start our breadboard wiring with these and then 'clean up' with hand-cut ones once we know the wiring is correct and the lengths won't change