This is a very “inside baseball” take. The average person just does not care at all about privacy from large corporations. It’s not even on their radar as a topic about which to have an opinion.

I think the biggest hurdles to widespread adoption are ease of connectivity (getting pics and videos “out” of glasses and onto phone/laptop/cloud), ultra high def images, size of on device storage, and battery life. Those are tough, given the form factor. But, if cracked, these will be huge.