Well batman storeis are not happy ones, those are superman stories. batman is of the darkness. there was also literally a policy that the batfamily cant be happy and that’s actually why Kate Kane and Maggy Sawyer’s wedding was canceled in the mainstream.
however as to the world needing batman: Earth-two batman goes into semi-retirement the day his daughter is born:DC Super-Stars #17
It will rip your heart out as it’s a sad tale.
Really though Selina got Mind F*)*$# into thinking that as she was having doupts put their by the joker and manipulated by Holly Robertson. As bruce is actually generally miserable at the end of a lot of his modern age stuff and the policy i mentioned above.
I did a bit of a babbling rant that ties into it a bit about it 3 hours ago: Love In Comics Superhero vs Vigilante's A Rant