quite interesting insight, I confess I am sort of prudish when it comes to talk about intimate things in public, I'm overall open and extrovert but I keep certain topics private. I don't judge others for talking about them. There is one topic that I admit causes me discomfort and is money, I think more than a taboo is a childhood trauma, never had much, and I underwent poverty, and I suffered poverty shame, so I'm afraid of it. But more than a taboo I'd say I fear it and that's why it makes me feel uncomfortable.
As long as you have at least one person to talk, you are fine :)
Poverty shame can get you into a wrong vibration when it comes to money, I do hope you let go of your fear. Good luck 💚