> There are hundreds of ways that different websites ask you to pick dates

Ugh, date pickers. So many of these violently throw up when I try to do the obvious thing: type in the damn date. Instead they force me to click through their inane menu, as if the designer wanted to force me into a showcase of their work. Let your power users type. Just call your user’s attention back to the field if they accidentally typed 03/142/026.