Why are angels always males?

[arewethereyet]

The certainty that angels are male because of their name isn' t quite as sure that the girl you met at Mardi Gras being female because she has a nice set of tits....

Non-gendered or nonbinary pronouns are not gender specific and are most often used by people who identify outside of a gender binary. The most common set of nonbinary pronouns is they/them/their used in the singular (e.g., Jadzia identifies as genderqueer; they do not see themselves as either a woman or a man). Other nonbinary pronouns include ze (pronounced “zee”) in place of she/he, and hir (pronounced “here”) in place of his/him/her (e.g., Jadzia runs hir own business, but ze is more well-known as an author). The terms “it” or “he-she” are slurs used against transgender and gender-nonconforming individuals, and should not be used.

https://springfield.edu/gender-pronouns

Angels are outside the "gender binary", it is childish, Anthropomorphic too to attribute gender to something you don't know.

For example; a black hole..is it male or female ?  
Pretty childish question, right? but isn't assuming a gender must apply to angels and to God is an ambiguous, medieval mentality?

Angels are depicted as humanlike.  That's why tend to appear as a specific gender.

A lot of languages assign genders (or at least the masculine or the feminine) to inanimate objects, so that's really not a childish attribute.

Check out the Spanish language.