I've done a fair bit of editing over almost 20 years. Some of my photos are featured in small articles, and I've only had a few of my edits reverted, always for sensible reasons. It's easy to get started, and the pitfalls (chiefly, adding commentary without a source) are well documented.
So on that basis, I agree. Please edit. It's easy. Start small.
That said, I've watched entire articles vanish under the banner of non-notability, which were clearly notable if one bothered to find some citations. The deletionists have a process and a timeline, while the contributions come slowly and sporadically. This asymmetry is a cancer. If there's a treadmill belt pushing articles off the site which fail to run fast enough, then it's impossible for small articles, which are just learning to crawl, to survive long enough to survive. It's not a test of notability, it's a test of Wiki-savvy among an article's supporters.
The best way to make a new article actually stick around, is to basically build the whole thing elsewhere, which takes weeks or months of effort for a single person since it's not collaborative, then plonk it into Wikipedia fully formed, and maybe, just maybe, it might have enough citations to pass the test of notability. But this means that, from the outset, it represents a single author's viewpoint.
Deletionists eviscerate what makes Wikipedia interesting, and they're the main reason I haven't edited more.