Why can I only buy $3,000 on Coinbase?

Could you please explain to me why I'm restricted to purchasing only $3,000 worth of cryptocurrency on Coinbase? I've been considering making a larger investment, but this limit seems to be preventing me from doing so. I'm curious as to what factors might be influencing this decision, and if there's anything I can do to increase my purchasing limit. I understand that security and regulatory compliance are important, but I'd like to know more about the specific reasons behind this $3,000 cap. Could you shed some light on this matter for me?