I do check the prices on many markets regularly. Bitcoin somehow slips in whether I want or not 😂
The reason I do that is because it helps me gauge the world wide situation. It's better signal then anything else available to me (like news? lol, prediction markets? why proxy).
And yes, I "can" read the markets because I used to trade. (Wasn't that profitable, so I just stopped).
I still have a use cases for "trading". One of them is bitcoin perpetual futures. When I spend bitcoin and don't have fiat to replenish, I just open a futures trade in the same amount using bitcoin as a collateral (basically a loan). In days like this, you don't even have to pay it back.