One of the useless worries people in fitness have

Many men and women, especially beginners like me, say they don't want bulky, bulging muscles. I can accept that, but honestly, even if someone actually wanted to build large muscles, the muscle size itself is something that's hard to achieve. They say they prefer lighter training to build lean muscle. When people say, "Try lifting heavy weights once, and you'll see," I personally think it's a useless worry because they act like building muscle is that easy lol.
To add one more thing, it's the same for people who train half-heartedly but spend all their time worrying about what kind of food or supplements are best.