を問わず

regardless of

→ を
phrase Rare #39,351
regardless of Follows a noun to indicate that something applies without being affected by it.
JA: このサービスは年齢を問わず利用できます。
EN: This service is available regardless of age.

年齢を問わず人々はこの歌が好きだ。

People of all ages like this song.

それは今でも男女を問わず愛読されている本です。

It’s a book that is still widely read by people of all genders.