We have our kids started with Diamond atomics. They have been good bows for them.
If they’re 10 and 13 do not do a Diamond Atomic. That’s not a suitable bow for kids that age. I would start them out on a Genesis personally. It’s a good quality bow that they can both shoot to see if they actually like archery. If they do then I’d look at something from the Mission line of bows. Either the Hammr or Radik. Both of those models will last them to adulthood.
Yeah, they are fun for adults as well!!!!Have a look at the Genesis Bow. It does not need you to set the draw length/etc as they grow. One bow does our kids, and even lets us take some shots while camping or whatever. All their friends can use it without change as well.