Hot take: 26 year olds should not fuck 19 year olds.
It's not illegal, but it's still weird, creepy and potentially harmful and no amount of lambasting about "the problematic age gap discourse" will make it not true.
As a former 19 y/o who was having sex with people that age and older- it entirely depends, but if you've done kink and consent education you probably have better boundary skills than most adult USians, and more experienced people showing you the ropes is nice.
But this is coming from a lesbian perspective and 19 y/o shouldn't be dating 26 y/o.
There are definitely 19 year olds that can date older.
The problem is that there are also definitely 19 year olds that can't and it fucks them up when they're manipulated. The reason this is a baity question is because it resides right at the edge of it all becoming ok.