I too have struggled with this. It was actually our neigbor, maybe 8 at the time, who taught my then 2nd and K children to tie their shoes...something about a bunny as well.

My ds 7 has yet to learn.

We are about to buy new tennis shoes though and they are going to
have to be with shoestrings so he can learn. We do have a BIG plastic shoe that fits over dc's real shoe that they can practice with...I've seen them before in online catalogs. I may get that out and have him start practicing...I'm embarrassed to say we've never used it.

Maybe you could find something like that?