I am a responsible hunter. I follow the rules of gun safety. I hunt in season. I don't shoot more than I'll eat.
Don't care about age, just try to base my harvest on size. Around here if it's 7-8 point or better, I'm probably going to shoot (at) it. Sometimes I'll shoot a six if I feel like it. I've killed a couple of buttons in bow season, don't lose sleep over it. I'll pile the does up when I can too.
I harvest what I want, and don't care if others do the same. Most of the guys I hunt with try to lay off the little ones when they can, but we might shoot 1 a year that would make the QDMA guys wake up with night sweats, screaming.
One thing I think is often overlooked and rarely discussed is that when the rut hits, you're often seeing deer from other properties, and the guys three leases over are seeing (and shooting)the deer you've watched at your salt lick and food plots all summer. QDMA gurus will curse me here, but in a lot of high pressure places if you don't take that 2.5 year old 8 point someone else a mile away will later. I've seen it happen too many times to call it mere coincidence. So unless you have vast, unbroken property and you're the only one hunting it, take what makes you happy, or you'll see it rolling in at the processor in a truck with Bone Collector decals, Ozonics sticker and a Yeti cooler in the back. :D
I grew up hunting places where we considered seeing a doe per trip a huge deal. My daughter has no idea what it's like to go a full season and see 3-4 deer and nothing more. I was a man before I killed a deer or turkey. She's 11 and seeing stuff every time she goes. So yeah, maybe I'm still in my "killing" phase at times. But I'm teaching her to respect the game and be safe, so to me that's what matters.
If you're being safe and having fun, I don't care what you kill. It's your tag.