@yellowdoggirl1
It’s a worry. Having been diagnosed with Celiac for about 16 years, I’ve gone from being chained to my kitchen because eating out was impossible, to feeling pretty darned good about my options. I have done river and ocean cruises and been able to eat safely. I have an app that explains Celiac in a dozen different languages and the server will read, and has always nodded enthusiastically and returned to the table with a gluten free menu, or even the chef. Celiac is broadly recognized in most of the world as a disease that requires rigorous dietary restriction. What a difference the past nearly two decades has made.
I would be very surprised that any retirement facility or assisted living facility could not accommodate something so basic as special diets. If they don’t then it is not the right living situation for you.
Locally we have a service called (patronizingly) “A Place for Mom.” The different facilities pay for the service. You can call and talk to them and give them your requirements and they will do the legwork. I hope they have something like that where you live. But regardless, don’t settle for less than you deserve. Eating is fundamental to good health.