I'm with Zardoz and BatlRatl. Education...maybe one employee at a time. Year's ago I went kilted to the original Tilted Kilt in Las Vegas and found a greasy, empty, neighborhood bar with a few old travel posters. The bartender was the only one there - no other customers.

Then checked out the Tilted Kilt at the Rio (now long closed) and found a noisy place with bad food and the employees dressed pretty much as noted. Seemed more a pool hall than anything Scottish.

The good news was a small gift shop with cool t-shirts and leather jackets (made in China of course). So, if there is a gift shop included when the place opens up you may want to check out their wares as possible kilt acccessories.

And, for me, it felt good to go reasonably properly kilted to the place.

Seems they're getting better - certainly better than the original dive bar. I believe most locations are franchise operations so there may be some hope for improvement (if you feel that's a necessary chore to undertake) by getting to know the owner.