Uncheck default “Ship to different address” on woocommerce checkout using functions.php

“Ship to different address” is the default setting on woocommerce checkout.

There has been much discussion about why this is or is not a good idea. See this thread https://github.com/woocommerce/woocommerce/issues/2571
As we all know, in the end though the client rules, and this is what my client had to say.

The “ship to a different address” box was checked by default. which is a bit annoying because if you don’t notice it (like I did) and you enter your credit card info, then there’s a message telling you need to fill up the missing info for your shipping address. Then you uncheck the box and your credit card info disappear, giving you no choice but to enter everything again (annoying!)

Now that credit card data re-entry issue is annoying, why it happens is another matter. I am not sure if it is just with inline Stripe or other methods such as PayPal too. But for me, unchecked box equals happy client. This simple line of code in your functions.php file will take care of it. Use a child theme, do not edit your themes functions.php, see the info box below if you don’t know about that.

add_filter( 'woocommerce_ship_to_different_address_checked', '__return_false' );

 
Obviously to make it checked, which it should be by default anyway, you would set it to true.