Interesting Dispel Magic Questions

[Witty Username]

Is this a rule or your own design? I couldn’t find an Errata stating anything like this.

As I recall, Its in the spellcasting section of the phb of how to read different ranges and shapes, self is a self targeting spell.

Self (5ft radius) would denote a spell that uses self as a point of origin but not nessasarily as a target.