[watwut]

First, she is an adult. It is very likely that she already did multiple foreign (most likely another EU) country trips without parents. If your adult child travelling Asia is so stressful to you, then you need to step back a bit.

Second, she was supposed to be travelling. It usually means changing towns and hotels every other day. The only reasonable way to send her money is to transfer them to her usual bank account. Moreover, hotels in Asia are often cheaper if you find them in place and negotiate. You do not know the address in advance.