There are so many YouTube videos on this topic. The algorithm notifies me continuously of packing videos. If you watch enough, you will never know if it's objectively better to use them or not, as there are plenty of arguments for and against.
Basically it comes down to your own needs and preferences..
As teabagwoman says, she thinks they would help as she has problems seeing. So she should go for it, I would say. They are made of very light materials so weight shouldn't be an issue.
With impaired sight I would go for the following:
* Get all different colours. Mesh is fine, but if you can't see well, you will see even less through the mesh, so having solid colours should help with recognising which is which.
* Maybe write on each in huge letters what is in them
* Don't skimp on quality and make sure the zips are good ones which won't jam,tear or split. Fixing zips is an annoying and fiddly affair even with good eyesight.
* Compression cubes, which have an extra zip to reduce the size, are only necessary if you tend to overpack or if you really need a lot of stuff. They compress the contents, but don't forget they don't reduce the weight! They also require particular care when folding or rolling as the tendency to crease is of course greater.
I have even found a video showing how to sew your own compression cubes which made me wish I hadn't thrown out our old tents, as they were made of the right kind of light nylon material.