My assumption about the default use case is that people want to take normal pictures. For example, I wear them to sporting events, and it's a lot faster to take a picture of the action with my Meta glasses than with my iPhone.
Being able to snap a pic without getting too far out of the moment, like when I am at a museum or in a beautiful place is great.
Even better is being able to snap a picture of my grandchildren without distracting them. As soon as I pull out my phone, they are grabbing for it. Some of my favorite pics were taken by my meta glasses.
That my friend is the reason everybody hates them
Also, I really, really hope you take them off when using the shared bathrooms at such an event. And you know, keep them off. Permanently.