Those who don't have internet access have more important things to be concerned, bitcoin is not their main thing they need.

Mass adoption is a long journey and all start with education.

https://darthcoin.substack.com/p/how-bitcoin-will-save-the-world

1. That figure is obviously growing rapidly, since it was 0% 30 years ago.
2. Home internet is not a requirement for mass Bitcoin adoption.