+1 on that. Some of these guys don't just look like they need an extra large uniform, they look like they need a extra large trench.
Don't mean to sound harsh,
Oh, come on, sure you do.
but to me, a reenactor should at least present a reasonable approximation of a "lean, mean, fightin' machine". That was one of my pet peeves about Bert Werner's recent and non inexpensive book about the arms, equipment and uniforms of the AEF in WW1. The reenactor photos in the book (which I believe included the author) contained far to many over-age, over-weight "soldiers", nothing like what the typical "real" doughboy looked like. Couldn't they have at least found some men of suitable age and physical condition, if they wanted to dress people up for color photo similations?
You know, not to argue the point Jungles, because technically you are right, but it is an expensive hobby. Very few 22 year olds, lean and mean or not, can afford it and, let's face it; weight has always been a problem in all of reenacting and in society in general. Remember, WW1 was a total war that almost no one alive today remembers. It sucked up and devoured people on a scale that we have not seen for over 60 years and extensive training and conditioning that modern armies luxuriate in was not available in 1917, especially in European armies. Men were taken into service, overweight or not and even, in some cases, in poor health. They were given the basics of training and sent into the meat grinder to survive or be spit out. By photographic evidence, we know that some did not match your image of a soldier, especially Europeans whose armies suffered staggering loses.
Personally, I weigh 145 and stand 5' 8", exactly the same as 40 years ago when I was 17 so I am not too concerned about myself and I do not complain about the guys who do carry extra weight. And at 57, I certainly can’t say anything against the guys who, as you say, are “over-age”. In the above photograph of IR92, there are at least 6 veterans and 4 of them are combat veterans - Vietnam and Desert Storm. That is not unusual in the WW1 hobby. If they have picked up a few pounds, we don't feel like anyone should complain, they have "seen the elephant" and can bring actual experience to the hobby. We worry about tactics and trying to do things right. The trenches, bunkers and all other physical aspects of our surroundings are built and maintained by the participants on land purchased by the participants. It is hard work. Sometimes we get it right and others we don't but there is a constant effort to improve the experience.
And one last thing: our events are not open to the public so only we see what we look like, we are not posing for photographs in books. It sounds like you know little about the hobby and have an idealized image of people in the past. If you have a problem with the images chosen by the author of a certain book, maybe you should complain to him and offer to be his model for future editions? Then come out and join us. I’ll bet you will learn a lot and would enjoy the experience. We would enjoy seeing and meeting you and you will not be judged by any other standard than that of what you can contribute.