This whole Mariupol surrender thing has me worried about what Russia is going to do with them. Kill them? Demand a trade of war criminals for them? Torture? Or just hold them while they slowly kill them off for one reason or another? I really have a hard time thinking that any good will come of this.
They've already done a few prisoner exchanges, so it seems they are willing to deal. I wouldn't trust them, but doubt there was any other option than to try.