How to enable USB Tethering without forcing me to use mobile data plan?

I wanted to tether my phone's connection to my pc via this old phone that I found. There's a setting for USB tethering, but when I turn it on, it says to turn on the mobile data? I went to the help thingy in the settings for the USB tethering and this showed what seen on the images below. Is there no way to stop forcing me to turn on my data just to share my connection to my pc? " class="img-fluid rounded" style="max-width: 100%; height: auto; margin: 10px 0;" loading="lazy"> " class="img-fluid rounded" style="max-width: 100%; height: auto; margin: 10px 0;" loading="lazy">