Never had an issue with Travelers Checks. Used them last month in
Disneyland, used them in England last summer. Will use them in Spring Training in Phoenix in 2 months.
Now, I wouldn't go into a store and make a $10 purchase and expect them to make change for a $100 travelers check. I carry $20 travelers checks. But that's no different than the growing number of small businesses that have signs up saying they don't accept any bills larger than $20. I get that.