Go to Thai embassy in Germany with birth certificate and parents ID and apply for Thai ID card first and for Thai passport. I’d imagine If she arrives in thailand 🇹🇭 on a foreign passport she will be subject to same restrictions as any foreigner.
I found that out when I arrived in the UK on my Aussie passport when my UK one had expired. Was told I was not permitted to stay in the UK longer than 6 months even tho I was born and raised there was also not allowed to work or gain access to public funds (unemployment) or housing.
My Thai wife didn’t have a current ID card when they updated to microchip version she was issued one on the spot in Sydney.
always amazes me. The Thai government insist 65K baht (AUD$2,786) per month transferred in from overseas as a minimum for you to live on and support yourself.
The Australian pension is $944 (22,018 baht) per fortnight but if you are out of the country or live overseas for more than 6 weeks it reduces to about $840 (19,588 baht ) The Australian government insists that even at $944 that amount is more than enough to live on yet the Thai government bear in mind thailand is a lot cheaper to live in than Australia insists it is not enough to live on in thailand. That’s a lesser amount of at least 25,000 baht per month to live on in Australia.