Anecdotally my experience has been the opposite in my mid-sized US city. Previously the only people out during the weeks at night would be drunks from bars.

Now even in the dead of winter, on my nightly walks I see people strolling around at night. Many times the same people, assuming they're just looking to get out of the house.

Summer was even more drastic, I don't think I have ever seen more people take to cycling and walking for enjoyments sake in my area before.