It is an issue with settings. I taught Facebook Page classes to Realtors and Lenders. I taught administration as well as engagement. Although members can comment on Page posts, there are no posts from members. Go into the Page settings and make sure that "Visitor Posts" is set to "Anyone can publish to page" "Anyone can add photos and videos to the Page.

What you see as admin is not the same as what we see from a visitor side.