The Dutch government decided she can't go... yet. She'll be examined by several psychologists to see if she is capable or not to do such a trip. By the end of October the judge will decide if she can go or not.

But still... she will go to different countries with different laws... so who says she won't be arrested in another country with more strict laws...

I still don't think it's a good idea for her to leave on a 2 year journey without interaction with other teenagers. How will her social skills develop when she's alone 90% of the time?