Better to know than not. Also, remember that only about 25% (IIRC) of the BAV patients ever need replacement surgery. Having a bicuspid valve is not a death sentence. Ignoring it if it needs replacement is. Most of us who know/knew we had BAV were much more careful about monitoring our condition, and are probably in better health because we did so.
I've been after my daughter to have an echo but she's "been too busy." Now she has a son, and who knows?