Focus national first or going International from the start?

My question is pointed at the fact that if it would be smarter to focus nationally first before going internationally.
Thinking more so in regards to for example payment methods.
Here where I’m from an alternative app like stripe, called MobilePay is popping off and gaining popularity. Stripe on the other hand is not known here and therefore lacks a bit in the trust department with the local people.
Stripe on the other hand would be a better choice when thinking about international customers.

Here the question comes in if it would be smarter to just focus on nailing down in my home country first before scaling into international which would require more knowledge in taxes etc. Or if I should try to scale into a larger customer base faster by going international.