Load into world before loading stops

So basically, the loading screen takes a while. But my Minecraft character can load in before the loading screen disappears. That means a zombie could kill me and my stuff might fall in lava. If my friend gets in the world before me while we're on a video call, I have to tell him to protect my non-controllable character until the loading screen finishes, well, loading. Please fix this issue Mojang. If we're not on a video call, then I can't tell him to try to protect me through chat because of the loading time. Hope this was a good bug report, I tried.