That was the common problem with carbs, chokes were primarily opened by electric heat (aka electric chokes), or manual with the old push cable (manual choke) and were often not adjusted correctly.
When you first step on the throttle (engine off), the bi-metalic spring which is cold pulls the choke closed. You HAD to press the throttle down to allow the choke lever to close. As the engine warmed up, either the electrically heated choke would slowly open the choke, or you slowly pushed the choke cable in. In either case, fully opening the choke too quickly released the choke and your engine wouldn't run right - cold engine needs more fuel.
Fuel injection essentially did away with all that hassle. Lollipops and Rainbows forever after.