I have my students "share" all the time. They are so comfortable with it
because they do it in their classroom all the time. It also helps them talk
about art and use the proper vocabulary. I start in kindergarten. If
students are too shy, then of course they do not have to share...but the
truth is....they all want to! They love to get up and point out things in
art prints, talk about their own work and add words to our diagrams.....