To say that people have crosstrained that don't believe in crosstraining is misleading. I've never crosstrained. I've studied one art at a time for 6 months to 3 years at a time. I wouldn't necessarily call that crosstraining. That is devotion to the art you are in at the time.
Cross training to me is taking 2 or more arts at the same time. This I don't recomend if one is to progress in an art in a timely manner. If you want to take a little from one art and then a little bit from another, hense MMA, then that brings a different outcome to the persons style of fighting.
Are them "more well rounded?" or are they just compiling a few techniques to allow them to fight for sport asap? Is this a viable way to train to defend oneself in the street? This is all debateable. And my opinion is already widely known in this matter. Focus on what you train, use what you train, stick to what you know, and adapt your style in application of street self defense. To mix too much can lead to confusion in the heat of the moment, or it could help. It's all up to the individual and the way they learn and can apply what they learn.
Why I don't like the students of WC to crosstrain grappling at the same time is because WC is learning how to punch and strike at GRAPPLING RANGE. If they always fall back on grappling at that range, they will never learn the striking aspects of WC/WT in that range.
Do I mind them learning grappling later? no. It's their choice, but I prefer them to have a good foundation in all ranges of WT/WC before they crosstrain in a grappling art.
As Sifu said, at the level of Si-Je and SiHing he encourages the assistant teachers to crosstrain in other arts, boxing, kickboxing, grappling, whatever to help them give the newer students a more realistic example of what they may face on the street. But, by then a assistant teacher has been in WC/WT for 3-4 years exclusively. Not everyone after that time in WC/WT becomes a SiHing or SiJe, you can "skip" that training and continue learning WC or whatever art as you like. Not everyone training in any art trains to become a teacher. And a teachers curriculum is different than that of a regular student.
Nonsense. You have cross trained, simple as that. Any person who has done more than one art and done them well has cross trained. MMA guys usually only train certain martial arts for a couple of months and move on. True, that they usually start out with some kind of foundation art, but have to work on all areas in order to get into the cage
I originally trained in karate for seven years, then went into boxing, ninjitsu, escrima, TKD, wrestling and a couple of others whilst I as going through high school. Then I started Kamon wing chun and never looked back. I wouldn't say that I have mastered the art, but it has certainly been the art that gave me foundations
I would never reccomend that a beginner (someone who has trained for 3 years or less) should start going into other martial arts, but certainly once you are confident with your wing chun and are merely perfecting what you have already learnt, you should start looking at other styles and do them in a very relaxed way (ie once a week)
To become good at self defence, you must have all areas covered. Groundwork is part of that. I think people misconceive the idea that if they go to ground then they wrap themselves into clinches until they get a submission. I'm not talking about that. I am talking abou understanding the basic principles so that if someone gets on top of you, you aren't going to panic and try to a pathetic flurry of chain punches while some brute hammers down on you
You merely need to know how to recover from those kind of situations until you find yourself back in a dominant position where you can use your most powerful weapon - wing chun. Even if the person is a good grappler it will not matter. I have sparred with purple, brown and black belts and whilst I could never even dream of out grappling them (even with my size/strength), I know that I could get them into a position where I would at least I have a chance of using my wing chun.
So many people on these forums worry about destroying the purity of their art. That is nonsense. Most of the martial arts we see today (including wing chun) has been modified, adpated and made much more efficient.
I would like to think that had ip Man been alive today, he would have admitted interest in the grappling game (maybe he was, who knows)