I am secretive about my trading but not because they will want to do it too. The response I get is different and mostly negative so I'd rather not to tell. I just tell them that I have an online job that is related to IT because whenever I start to tell them I am involved in trading crypto, we go in a heated argument because they start saying 'oh, is that a scam?' or 'that is an investment scam!'.
+1 for you for being real and secretive about crypto-currency trading.