Sure. This is only my own personal experience, but I would not let that stop you from moving to a Mini.
It is a fabulous piece of tech and mostly Face ID is pain free. 👍
For example in Apple Pay.
With Touch ID I just needed to place my iPhone near the scanner, finger on the button, wallet pops up and *ding* it pays. That helps when you use an in store app to scan as you go along to self checkout.
With Face ID, to use Apple Pay you have to double click the power button, then Wallet displays, then look at the phone to confirm ID… and it does not always work smoothly. Especially when it asks you to input your password now and then…
When using an in store app to scan items, the double clicking of the power button can confuse some apps…
With Touch ID "Raise to wake" with my finger on the button takes me straight in to the home screen.
With Face ID you need an extra swipe up…
Touch ID identifies you whether you are wearing glasses, sunglasses, masks, brightest sunlight or in complete darkness.
Face ID sometimes gets it wrong. If the light is too bright — on the beach for example. I have it 75% working with glasses and sunglasses and masks, but it does not really get that I like to wear different styles of sunglasses.
However, all that being said, I did get used to it. And mostly (mostly!) Face ID works well. It is amazing technology.
Still, I wish they would incorporate the Touch ID in to the power button.
Of course YMMV and you'll probably hear from some people who will claim 100% success rates with Face ID… well… yeah. I'm not one of those "lucky" ones.