In what way? In the UK you can go to your local tesco or other big shop and grab a prepaid SIM card very easily. In fact, my university’s CS Dept used to have a bowl full of £5 prepaid SIM cards that sat in a bowl near the entrance.
Then I would be more worried about which radical extremist would use it to plot the next terror attack. With some proof of ownership of the sim one would atleast have a human trace. Sure terrorists these days use satellite phones but giving away sims on a bowl without any proof of ownership is just lowering the entry barrier.
You can pay homeless or poor people to buy anything you want. Was pretty common when I worked at att. Granted that was for fraud with leased phones but if they just wanted a sim card with no connection to them it would work fine.