Everything depends on the security compliance needs.

Regarding backup scheduler - sometimes companies need to have frequent backups due to their RPOs and RTOs, for example, if they operate in a highly regulated industry. If someone can tolerate the loss of data of two hours, then, they need to have backup performed every 2 hours, if we speak here about 8 hours (working day), so why not to have backups on a daily basis?

Regarding rotations - everything depends on a backup solution, if it provides with immutable backups, so the entire data won't be corrupted. Thus, the faster someone notices the mistake, the faster they can restore their copy. IDF helps more to decide the issue with storage - not to overload it (here also worth mentioning deduplication and compression).