On a recent Thursday afternoon, Rhianna Alvarado struggled to don her protective gloves, which were too big for her petite hands. With her mom coaching her every move, she edged close to her father and gently removed the plastic tube from his throat that allows him to breathe. She then cautiously inserted a new one. “What’s next?” asked her mom, Rocio Alvarado, 43. “I know, I know,” replied Rhianna, her eyes constantly searching for her mom’s approval. Rhianna is only 13. When she finished the delicate task of changing her father’s tracheostomy tube, usually performed only by adults, she went back into her room to doodle on her sketch pad and play with her cat. Rhianna’s father, Brian Alvarado, is an Iraq War veteran and a neck and throat cancer survivor. Like most kids, Rhianna has been stuck at home during the COVID-19 pandemic and attends school online. But unlike most other eighth-graders, Rhianna is a …