Notice how Alisha originally wanted her mother to tell her younger sister that she didn't miss her either. Thankfully she wised up and crossed that line out before sending this letter.
If you want your camper to respond to your letters, here's how you do it.
1. Write something ridiculous.
2. Ask a bunch of questions -- with answers -- so your camper only has to circle the responses and not actually do any work, because let's face it, they're lazy.