Is floor-to-ceiling glass wall comparably unsafe against burglars than the old-looking wall with windows? Help

Answer 1

I don't think so,
Most burglars use the door.
I guess they can see what you have inside though.

Answer 2

over the last 20 years, I've seen many homes with floor to ceiling glass walls - and even more now ! Most burglars tend to break in through back or front doors, so I believe it is very safe. If you don't like your house to look like a fish tank (especially at night) use drapes to protect your internal areas from prying eyes as well as the intense sun light