It’s not just this year.
This is a growing issue over the past 8-10 years.
It makes me wonder how much of this is due to crime. When I was a kid in the ‘50s, my parents often left my brother and I in the car while they ran into the store to grab something, even when it was hot. Of course back then no one rolled up their windows and locked their car before going inside a business. Why would you back then?