It's situational. Was there an injury? Is a kid a better prospect at a position they aren't playing at their home school? Is the kid a late bloomer?
For instance, the Holloway kid from Andrews went to Rabun Gap a few years ago, reclassed, and switched from QB to WR. He went from 0 offers to a handful of P5 offers, and was just All-ACC Honorable Mention at VA Tech as a true freshman. That stunk for Andrews but was the right move for him. However, a lineman (West) from Andrews that's about to be a senior has offers from half the ACC without leaving his hometown school and reclassifying, and would have no need to do that.