It's not about them trying, they don't have the competence that it takes to sell phones worldwide. It takes years to build relationships with the carriers -- where most phones are sold.

You mean the carriers they have relationships with for Fi? https://fi.google.com/about/international-rates/

Those are roaming agreements. It’s a lot easier to get roaming agreements than your phone in retail stores.

Notice that they don’t offer Google Fi for sell internationally and they also don’t offer free roaming like t-mobile.

It took years after the first iPhone launched in the US for it to be available in peripheral markets.

The hardware supply chain capability at Google is beginning to ramp up, but is nowhere near the maturity it needs to be to support a global rollout.

If we consider parent's home country a "peripheral market", then it took iPhone months to reach it. Don't forget that Nexus One launched almost 10 year ago. There was plenty of time to build the supply chain.

Apple sold 10 million phones the first year it was introduced in a much smaller market with only three or four carriers worldwide.....