I don’t understand how either of those approaches can possibly work. For one thing, they make no sense. How can one date “contain” another? And how could one’s birthdate be the current date? (…unless they were born when the page is loaded 
) Plus, there is no contains operator for dates.
There’s a bit more to working with birthdates than one might initially think, as they’re what are considered “floating” dates. They actually require special handling (which Bubble does not natively support) - especially if your users are not in the same time zone and they’re entering their DoB through your Bubble app (i.e. a browser). Here’s one way (although not the only way and not necessarily the best way) to go about it.
-Steve