I came to this question because of something that I read saying older Americans shouldn't stress about maintaining (or obtaining) a good credit score as they age.
As someone who has an "excellent" credit score and has for decades, I found this interesting as I do take pains to maintain that level. Like never making a late payment, etc.
I remember the last time I rented an apartment in the U.S. before before buying a home that the rental agent said Wow you have really good credit as if she had never seen an applicant that had before and/or she was surprised that anyone with such good credit would even want to live in her dump. The older lady above me was eventually evicted so I guess she was the more typical tenant there.
Of course I understand the benefits of a good credit score living in the US and the penalties for having a bad one, but living in Thailand it doesn't seem to matter at all either way.
Now IF repatriating, that would be different. The same ball game buying a car, renting an apartment, etc. Unless you will be buying a car with cash, buying or already have a home, etc.
I guess the advice I read before being about living in the U.S. older people assumed older people have cars they bought for cash and mostly own their own homes.
As expats if we don't expect to repatriate, I guess effort made to keep the number up will be wasted.