I only trim a little, but don't alter the shape of how my pubes sit, if you get what I mean. I have had to shave it all off once or twice (medical reasons) and the weeks of itching afterwards makes it uncomrfotable. I also don't like the look of my downstairs area afterwards. I'm quite a hairy guy so unless I shave my chest, ass and the top of my legs too then a bald cock looks stupid. I can't be bothered doing that all the time so I'm all natural or just the odd trim.
Thankfully, most guys I see are either trimmed or just totally natural, I've not really noticed the shaving thing to be honest and whenever I have seen a fully grown man shaved he has very much been in the minority. Then again, I don't live in the USA where body image is taken so much more seriously than it is here in the UK and other parts of Europe (perhaps not Germany though, most German guys I know shave off almost all of their body hair). Chest shaving is quite popular in the UK, I've noticed, but pubes seem to remain as they are intended to be!
For the record I don't like totally shaved women either, fair enough, pits and leg hair I am not too keen on, but a bit of bush around the pussy area is nothing to complain about.