Most people don't bother reading the terms and conditions when they download apps. Because they're boring. The downside of swiping and tapping without actually looking at app permissions is that we often allow broad permissions without thinking, like downloading an app that wants to gets all your text messages and not even knowing it. This video shows how unsettled people get when they realise exactly what they've been saying yes to on their phones.
It's worth noting that a lot of these permissions seem worse than they really are. For microphone recording, that's something that apps that record video often need to get sound without asking every single time if it's okay to also use the mic. There are usually decent reasons for most of these, though not all the time. And even if there are good reasons, maybe you don't always want to make the trade-off!
Still, the reactions here are a reminder that it's often worth it to take a closer look at the fine print before using a new app. If there are good reasons, you should find them out ahead of time. It's never good to be surprised that an app has unexpected access.