Why this style? Because it's the style I like and it's easy for kids to adjust on their own. D-ring buckles have a way of coming undone when you least want them to. It's hard for a little kid to re-thread the end of the tie through them and a pain for their parents to do it for them. It's also easy to tie your hair inside the bow of tie-behind-the-neck aprons. If you're bald, this isn't really a problem but if you're not it hurts just as bad as back in second grade when that jerk Craig McKenna grabbed your braid as you were rounding first base during kickball.
"But a casing is hard!"
No, it isn't. Don't be a nancy. This pattern has only four pieces, three if you cheat and buy bias tape for the tie. Really, it is crazy-easy to make. You can use cute fabric to make a hostess apron or use matching fabric to make a parent-child pair of aprons. Use denim or a masculine print and you've got a great Father's Day present for the dad in your life. Add a pocket if you want, add rick-rack or trim or a heart-shaped lace pocket. The look of the finished apron is up to you. Be creative!