Putting on the gloves and having a "go" is very valuable. If you aren't wearing protective gear and you are training with a colleague in a "friendly" situation, 9 times out of 10 they just aren't going to be trying to really hit you. So its not as "realistic" as you think! That's just human nature. But put on boxing gloves and maybe headgear and all bets are off! Subconsciously people just take this as "permission" to really hit you! So if you never put on any kind of protective gear but think you are getting the benefits of actually sparring, I think you are deluding yourself. You can Chi Sau/Gor Sau/Lat Sau all you want, but it is still not the same thing as a determined opponent truly making an effort to hit you, and hit you hard!
Complicated Chi Sau/Lat Sau "tricks" typically are not going to work in the real world. What is going to work are the basics. This includes how to send and receive force, how to keep your center and your balance, how to control distance, and how to use your basic defenses like Pak, Tan, Bong, etc. Multiple step Chi Sau combinations are not in that realm. Putting on boxing gloves certainly limits your ability to do those complicated Chi Sau tricks. But they do NOT limit your ability to do any of the other things I mentioned. The benefits of putting on gloves and training against someone that is truly trying to hit you far out-weigh any negative aspects. If you don't see that, its likely because you have never truly tried it.
But absolutely you need to spar against people other than your fellow Wing Chun players. Sparring with someone "pretending" to be a boxer is nothing like sparring against someone that actually is a decent boxer and knows how to land hits on people from multiple angles! Finding people like this to train with is sometimes not easy. But its worth the effort even if you only get to do it infrequently. It will really open your eyes.
Does this translate over to the "street"? Hell yeah!!!! Do you think a determined thug is just going to drop to the pavement with your first punch or turn and run away? Don't count on it! Do you think you are so good you can close with someone and they would never have the opportunity to back away and create distance between you? Maybe you are! But don't count on it! The ability to "close the gap" is very important. This is exactly what you are doing in the "back and forth nonsense" of sparring.
I think its pretty simple really. Typically the people that say they don't see value in sparring are the people that never spar and have never really even tried to on any kind of serious level. And people that say you can't spar with Wing Chun just prove this, because you can! ;-)
Complicated Chi Sau/Lat Sau "tricks" typically are not going to work in the real world. What is going to work are the basics. This includes how to send and receive force, how to keep your center and your balance, how to control distance, and how to use your basic defenses like Pak, Tan, Bong, etc. Multiple step Chi Sau combinations are not in that realm. Putting on boxing gloves certainly limits your ability to do those complicated Chi Sau tricks. But they do NOT limit your ability to do any of the other things I mentioned. The benefits of putting on gloves and training against someone that is truly trying to hit you far out-weigh any negative aspects. If you don't see that, its likely because you have never truly tried it.
But absolutely you need to spar against people other than your fellow Wing Chun players. Sparring with someone "pretending" to be a boxer is nothing like sparring against someone that actually is a decent boxer and knows how to land hits on people from multiple angles! Finding people like this to train with is sometimes not easy. But its worth the effort even if you only get to do it infrequently. It will really open your eyes.
Does this translate over to the "street"? Hell yeah!!!! Do you think a determined thug is just going to drop to the pavement with your first punch or turn and run away? Don't count on it! Do you think you are so good you can close with someone and they would never have the opportunity to back away and create distance between you? Maybe you are! But don't count on it! The ability to "close the gap" is very important. This is exactly what you are doing in the "back and forth nonsense" of sparring.
I think its pretty simple really. Typically the people that say they don't see value in sparring are the people that never spar and have never really even tried to on any kind of serious level. And people that say you can't spar with Wing Chun just prove this, because you can! ;-)