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Microsoft is enabling BitLocker device encryption by default on Windows 11
(www.theverge.com)
This is a most excellent place for technology news and articles.
Many people will have access to a secondary device, not all of course.
Almost everyone has access to a phone. Most governments, including the US provide free or low cost smartphones to those who can't afford it. There are entire MVNO carriers based around this, like Assurance wireless.