In a perfect world, you could simply turn off Alexa's Calling and Messaging feature with the flick of a switch. But it turns out that you need to enable something called "Free Time" to turn it off, which is an incredibly convoluted process.
From the Alexa app's home screen, tap the three lines on the top left of the app.
Then tap your Alexa device.
next slide will load in 15 secondsSkip AdSkip AdScroll down to Free Time.
And go through the tedious process of setting up Alexa for your kids, even if you don't have any.
You can turn off Calling and Messaging in the final step of the Free Time setup.
If you actually like using Alexa's Calling and Messaging feature, you can block individual contacts.
In Amazon's Alexa app, tap the Calling and Messaging button towards the bottom left of the app.
next slide will load in 15 secondsSkip AdSkip AdThen, tap the Contacts button towards the top right.
Then tap the three dots on the top right.
Now you can block individual contacts to prevent accidentally sending them private conversations.