It takes a lot more than the right tire irons..
It takes knowing how to use them, and more than that it takes a lot of practice.
Not saying it's an impossible task, I removed 3 last week and another one to do tomorrow, not looking forward to it, but it's only one more.
Some task are much more enjoyable to pay a pro to do than to do yourself, drywall work as an example, and dismounting a bunch of old tires falls in that list somewhere too...
Grigg