This rule is pretty well known and generally a good convention to take.
A relationship with a bigger age gap than suggested by this is going to have a weird power dynamic, because of the different life experiences and life positions of the people involved. If you're the younger person in this relationship, don't kid yourself that it makes you mature.
Herpestr t1_iu8ch7p wrote
Reply to LPT: There is an easy way to calculate if an age gap in a relationship is "appropriate" or not. by Chipsinabag01
This rule is pretty well known and generally a good convention to take.
A relationship with a bigger age gap than suggested by this is going to have a weird power dynamic, because of the different life experiences and life positions of the people involved. If you're the younger person in this relationship, don't kid yourself that it makes you mature.