As a simple rule of thumb, the further away you are from civilisation, the larger the acceptable age discrepancy between you and your partner, and the less the pressure for a government-approved union.
If, for example, you own a motorhome in Cambodia, Indonesia, Thailand, Vietnam, or Laos, you can drive to a really remote area, park there for a day or two, make friends with some villagers, and mention that you want to find a wife (no formal marriage requested).
The woman may well be 30 or 40 or 50 years younger than you.
You can have a village ceremony a week later, and then live in your motorhome, or bring some movable units there.
This would not happen to you without a motorhome or mobile housing because you would be considered a tourist who may be out of the country the next week.
And without a motorhome, you yourself would not consider the option of staying in such a remote area, as usually, accommodation is the shabbier the further away you are.
You have to have appropriate facilities first before the opportunities come along.