I have been using canvas bags since the early 90s. I have LOTS of them from various volunteer activities and events, etc. I've used them for all sorts of things over the years and haven't given it much thought. I guess I was pretty low-key about it.
A good friend apparently took notice, though. She gave me a cloth bag a few weeks ago that is made from 100% organic cloth and says, "I don't do plastic" front and center big as day. Eek! LOL It was a sweet gesture and I like the way the bag is built, etc. The saying is LOUD for my tastes, but whatever. I use it right along with my others.
Just the other day, after more than 15 YEARS of using canvas bags, I had my first uncomfortable experience. I was at Wal-mart and it was not busy, but the cashier was less than happy about my bag. I only had one bag and everything I purchased easily fit in it, but it was awkward for her. I decided to acknowledge her challenge with bagging and we ended up having a fairly good conversation about how canvas bags are changing the way cashiers have to work and so forth. The lady behind me in line also chimed in. We decided someone needs to design a universal "holder" for reusable bags. I suggested a cashier design it since she/he knows what it is like firsthand to bag with customer-provided bags and sees lots of different styles, etc.