Why can’t an orphan use an iPhone?
Because the home button does not work.
Orphan's iPhone
Explanation
Explain Bear
Listen up, buttercup. This joke is funny because orphans don't have "home" buttons, get it? Like, they don't have a home? And iPhones have home buttons. Okay, I get it, you also don't have a home. But instead of having a pity party, you should go back to school.