I work in grizz country everyday in northern Alberta. We have the most grizz per square mile than anywhere else in North America. We have big boys. I always have my 308 with fusion hunting rounds loaded up. Your friend is a few fries short of a happy meal. I do not, I repeat I do not carry spray. You’re more likely to incapacitate yourself than the bear, and I’ve seen grizz charge right through it and not care. I’ll trust good ol physics thanks.
Your friend sounds like he might be a leaf licker.
Many would disagree with you. But to each his own. Stay safe.