Good choice. 'Roids have too many risks to be worth the effort, and anyone who's motivated enough about his strength and appearance that he'd seriously think about using them has enough motivation to get on a good program and stick with it.
If you're six feet tall and have just an average, semi-athletic build, you WON'T be messed with very much. You're noticeably above average in size and, presumably, strength.
I'm 6'0" myself, and running about 200 pounds, and a few of those pounds are extra fat but fortunately not very much of it. (I'm trying to get rid of it, too, but it can be a challenge!) Since I hit my 30s and my shoulders and chest filled out naturally, NOBODY gives me any trouble. As I've bulked up all over in the past year, it's been getting even better. I get respect!
I'm an observer of people. It's a hobby. I see how smaller people react when big, strong men enter the room, and there definitely IS a reaction, though it's usually subtle. I see that reaction all the time when I end up getting fairly close to smaller people, and their reaction amuses me.
As for muscle mass....if you want more, there's nothing wrong with that. Somebody asked why you'd want that, but I ask, why wouldn't you want it? I want to add muscle mass as long as it doesn't interfere with my flexibility, and I want that muscle mass to be dense for maximum strength for the size of the muscle. Yes, I want to be a real bruiser. But I'm hardly on a bodybuilder's workout program. My goals for size and strength are more realistic.
CJ