Recently went to popular burger joint in kochi and to order you need to share your phone number so as to order, otherwise one can't order. It's this way or nothing.

So I went to this burger joint and I was asked to scan a code to get the menu( that's fine) but I still prefer a menu card, (what if I don't have net). And then order through their menu app for which I'd have to share my number, which i declined and when asked could they take the order directly, the waiter said no and said here it's done this way. What do you think guys ? Would you be fine to sharing your number as a must to order food and other daily stuff.