She is an 18 year old adult not a child.
She sold her passport/identity for money. She introduced others to the above illegal activity.
She has attempted to carry a significant amount of illegal drugs through 2 or more countries. Drugs bring misery to those addicted and can lead to other criminal activities.
She (reportedly)made social media posts related to her actions.
If she is found guilty she should expect to be treated the same as any other person who is found guilty in Georgia.
She shouldn't suddenly wave her British passport, which, ID she previously sold and expect preferential treatment.
Do I have sympathy? Yes, maybe a smidgeon.
Ultimately, we are responsible for our own actions. We make choices and have to live with the consequences.