If Travis Kelce looked angry when he bumped his head coach Andy Reid on the sidelines during the Super Bowl Sunday, a lot of the people who saw him were angry, too. Even Chiefs fans. And fans of Kelce’s girlfriend, Taylor Swift. And parents who vented on social media, wondering what would happen if their kids acted that way toward their coach. Reid said later that Kelce soon apologized. But on social media, many say they wish Kelce would apologize to the public who saw anger on national TV, noting that children were watching. “Now imagine Travis is a travel team parent and Andy Reid is a 16 ye…