Your logic is unsound, invalid and unjust. Girls as young as 12 find themselves cast out in the world, needing to make their own decision and 2/3 of the civilized world simply doesn't give a crap about a 28 year old man almost having sex with an almost 16 year old girl, especially NOT 40 years later you fucking know-it-all who really knows jack shit that's actually legitimate anywhere but in your video game world.
Tommie, this is not a question of logic.
Girls who are as young as 12 cast out in the civilized world are nearly always able to get help from the authorities.
The reason they get in situations like your Sabrina is that they more often than not expect an apartment or house, free income in the way of benefits and freedom.
The reality is no matter how mature they feel, they are children.
So where they get housed is normally a care home or fostering. They of course are expected to attend school, or have some kind of tutoring, because again, they are children.
Some girls don’t want to do this, so they run away again.
Then they find themselves with creepy fucks like you Tommie, who encourage them to do what they want cause “fuck the man”.
You might not realize and see yourself as so, but that is abuse by abusers, at the very best, enabling by enablers.
There is a reason the age of majority is 18 in most countries, even though some 12 year olds can “seem more mature” than some 18 year olds, it’s at 18 which one has usually finished puberty, has a bit of life experience, and is in most appearances an adult.
Some people think it should be raised to 21 or even 25, but it’s generally accepted by most.
In every case though, even here where 15 is the age of consent, a 28 year old man banging teenagers, especially underage ones is frowned upon and leads people to question the 28 year old as a character.