ephebophilia
From what I just googled ephebophilia starts at 15, 11-14 is hebephilia, I think a lower age of consent in some cases can be argued (I think it's already a thing that in special cases it is already allowed, for example, a 16-17 y/o with someone who is 18-20) with special protections in place, like keeping a close look at the relationship and power dynamics.
Talking about this as a non-professional pedo (sarcasm), as I once dated 16 while I was 19, yea, a bit icky, but legal. I think the law as it is already contemplates underaged relationships enough, I think it even contemplates 16-17 with older adults even, again with a ton of restrictions (you can get charged super fast if the relationship has abuses that might pass as normal fights in a same age relationship, stuff like that)
I think its perfect as it is really. Safe enough for most and even giving a bit for the most depraved, impatient people of society that don't wanna necessarily wait
I think you should flat out not accept anything 15 and lower, you're cutting too close to the person not being mature enough, a 16 y/o is pretty close to 18 when it comes to maturity, but go to 15,14,13, and that's not a thing anymore, 12 and less is insane to even think about.