When will quantum computers be available for consumer use?

Quantum computers powerful enough to threaten cryptocurrency security are likely still 10-20+ years away from consumer availability. Current quantum computers exist but lack the computational power (millions of qubits) needed to break encryption. However, the crypto industry is preparing now through quantum-resistant algorithms. Bitcoin and Ethereum could potentially upgrade their security protocols before quantum threats materialize. For everyday users, consumer quantum computers may arrive even later, primarily serving research and specialized computing tasks rather than personal use. The threat timeline remains uncertain, but the proactive approach gives the blockchain community time to adapt.