[throwawayboise]

You're too paranoid. Bats have good enough echolocation ability to eat mosquitoes out of the air. They aren't going to fly into you by accident.

Bats do a lot of good keeping other insects under control.

[powersurge360]

Bats do do a lot of good, but you also can be bitten by a rabid bat without knowing it.

https://www.nytimes.com/1999/03/16/health/cases-a-bat-s-swif...