Well its give or take the way I see it, you may not want to shoot one early season in case it has a fawn hanging out near by and then you may not want to shoot one later in the season that could potentially already been bread. It's different for each spot I hunt though. My personal land I don't shoot any does and strictly wait on mature bucks, but I've got permission to hunt a lady's land that just wants the deer thinned out so I will shoot the first thing I see every time (except a fawn even though its legal now lol)