Most bikes today don't have chainguards. Older bikes did, and they also came fully loaded with fenders, bells, chainguards, baskets. During the last few decades, bicycles were considered a 'sport' item, so stripped down to basics. They were not considered 'transportation'.
When I bought my bike, I had to buy 'accessories' like fenders, etc. But I still have no chainguard. Is it even possible to put a chainguard on a bike like mine? I ripped my pants the other day because of that. Thankfully, I have a seamstress who fixed it. She did a pretty good job I think.
Still, there is the black chain marks on my pants. I like how one bicycle blogger commented how he would like a black chain mark tattoo, but that he gets them free every day! :)
I could wear bike shorts all the time, but that's not me. I like biking casual, except for long distance touring. Anyone else have this problem? Can you put a chainguard on a hybrid bike or other bikes that don't have them? I've seen dutch bikes and other bikes have them and I like them! Are they heavy?
Hopefully I won't tear the pants again, but not having a chainguard makes it hard to wear any pants...especially ones with a wide bottom on legs. I had to tuck my pants in my socks when I biked back from Salmon Valley, to keep them from getting caught on chain and water bottle.