Owning gold as a reserve

[Ryan Spearman]

I’m a big fan of cash reserves. 
The covid outbreak has only emphasized this. 
The problem with cash is that if you have any form of debt it literally costs you money to hold cash. 
To get around this I have a big line of credit on one of my properties, more than double the amount I feel I need in reserves. It means I always have liquid cash on hand but if I don’t use it I’m not paying for it. 
Problem is, it’s not as safe as cash. The bank might want it back if things really go belly up. 
So that led me to consider gold. From what I understand, the average growth rate of gold is generally always more than mortgage interest rates. 
Would it be totally crazy to keep some or all of my reserves as gold? It’s not as liquid as cash, but close to it, and it’s worth way more than cash. 
Let me know what pitfalls you see. I’m sure there’s plenty I don’t see