Tree can't grow easily

The tree can’t grows in the conditions shown in the 1st screenshot below.
We can’t do thing even with FULL redstone so please change it.

As you can see in the 2nd image just buy removing the obersever blocks on the right it grows
(i've put a lot of bone meal and gamerule randomtickspeed to 255 so i’m sure of what i say, when i brock the line of blocks, it instantly grown).

And on the 3rd image why cant it grows because of only ONE of the red blocks is placed
(all blocks, not counting dirt variants) from the ground to the sky ?

I would prefer a game where thing are symetrical, not aleatory, the player need to know th direction of things and more and that’s really anoying sometimes…

In survival mode i tried multiple times to just grow a 2 by 2 tree like this but couldnt grow just because of grass blocks 😕 .