Uh, if you were 13 and your partner 28, yep, that would be a “problem.”

I put it in quotes because I guess it depends on the region’s age of consent.

But my point is that an age gap can be significant depending on how old both parties are at the time.

Having said that, there was an 11 year old gap between me and my partner, but she was already in her mid-30s, so, no biggie.