When will quantum computers be widely available to consumers?

Quantum computers powerful enough to threaten cryptocurrency security are likely 10-20+ years away from consumer availability. Current quantum computers are experimental and can only solve specific problems. For widespread consumer use, we'd need stable, error-corrected quantum systems—technology that doesn't yet exist at scale. The crypto industry is preparing by developing quantum-resistant encryption standards. Bitcoin and Ethereum would likely upgrade their security protocols before any real threat emerges. Experts generally agree we have sufficient time to implement protective measures before quantum computers become a practical concern for average users.