Imho, the J5 is too tiny to use a traditional neck strap, which I did try for a while. I use an ancient coolpix wrist strap and I have a couple N1 branded, leather wrist straps. I wasn't much aware of the N1 system till I saw boxed, brand new accessories in local thrift stores.
I purchased the leather "NeverReady" case via Ebay, direct from China. (It might not be easy to get another right now.) Riding within the "NeverReady," I can toss the camera on the car seat, drop it by accident and all is well. I am well aware of the downside/missed shots, etc.
Perhaps I like the nostalgia of yesteryear stuff. I don't know why. (Haven't you figured out, photographers are a fickle, picky lot, generally hard to please, and have the ability to fuss over silly stuff.)
The J series and the 6.7-13 make for an odd shaped lump, especially removing it from your coat pocket. In the US, the J5, short zoom, longer zoom bring a fairly steep price.