Is c4 a good move in this position?


The reason I was skeptical was I've never seen this move other than 2 times, and I'm all the bird/Dutch instructional videos I've never heard this move mentioned. It seems alright to me, but I wanted to get other people's opinion as well, especially on whether the weak d pawn makes this a bad move or not.



Honestly I think it's a good move, but I wanted a couple other opinions
Notice that in both positions White is using the power of his pawns and pieces to control the central squares (d4,e4,d5,e5). With this strategy he is not occupying any central squares in order to keep them from becoming targets for the Black army.
Black on the other hand has a pawn at d5 that is a target for White's pieces. The move 6.c4 has just targeted Black's pawn at d5 and is attacking it.
If Black allows White to play c4xd5 on his next move, White will have a 2 vs. 1 pawn majority in the center. White has a long term advantage into the endgame.

There are many ways of playing the structure you mentioned - but the bishop should not go to d3 - black has a pawn on g6, fianchettoed, and that would not effective, and it would block the d pawn as you said. Much better is to place the bishop on e2.

I think in OTB game it is ok to make this move as it will eat up black's clock. In postal chess, not so much there is a reason for this not being the main line and CA or CB will tell a black player of any level what it is. This is the reason I love 960, there are no databases to cheat a player out of good ideas that have tatical counters.

The way I see it, it's not part of an attack on d5 (at least not in the sense that white can force black to capture on c4 any time soon), I see it as just a space gaining move. Seems fine. I wouldn't guess white needs to play it... but I'm not that familiar with dutch / bird structures.
You said something about white's d4 pawn, but that's not what I'd want to look out for as white. I think the "scary" thing is if black can play d4 with something like c5-d4 (or improbably e5 d4 somehow) in which case both of white's bishops look silly (c4 blocks one, and black's d4 blocks the other).
So I guess the drawback (or the thing you'd want to check) is whether or not you're ok with the position if you're forced to capture on d5 as white.