Didn’t get fingerprinted for F1

My brother just entered the U.S. for the first time from Canada on his F-1 Visa. He entered at YYZ Pearson Airport and they did not fingerprint him. Is that common? It is my understanding that fingerprinting is required.

submitted by /u/jgrewal5
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source https://www.reddit.com/r/immigration/comments/p1nbrd/didnt_get_fingerprinted_for_f1/