Regarding regulation, I believe it would be against the law when the government doesn't legalize bitcoin as a means of payment and someone adopts it in their physical service or company. We know the Indonesian government does not legalize bitcoin or crypto as a means of payment, and if the regulations don't allow it then you shouldn't adopt it.
Of course, the Indonesian government does not legalize bitcoin as legal tender. But you can still own bitcoin, trade them and invest them because it is legal. The legality of bitcoin in Indonesia is still limited to commodity assets, so it cannot be used as a means of payment.
If you don't want to get into trouble with adopting bitcoin as a means of payment in countries where it is not legal, then avoid adopting it. Ultimately adoption cannot be forced, it has to be right.