It's hard if you aim at the Sun. So don't do that.
You just have to kill your starting orbital velocity relative to the Sun (the efficient way is to fly away out from Earth to higher orbit and then kill your orbital velocity rather than just immediately killing the orbital velocity you get from Earth at Earth's orbital distance -- we can launch craft with enough delta-V to do the former, but not quite the latter, IIRC, with current technology.
> Things don't just get sucked in.
They do unless they have a sufficient component of their velocity at right angles to the Sun to avoid doing that, but that's a solvable problem. You don't hit the Sun (easily) by thrust at the Sun, you hit it by thrusting at right angles to it, in the direction opposite whatever component of velocity you currently have orthogonal to the Sun, and gravity will take care of the rest.
(1) We can launch a rocket that has a payload that hits the sun: it's just costly to do because the rocket starts out orbiting the sun, so we would have to expend delta-v to neutralize the tangential component of the initial velocity.
(2) If you are in a space ship heading towards the sun, it is easy to hit the sun as long as you can steer, and even if you can't steer, if you are heading squarely at it and no planet gets near you to change your velocity, you will hit it.
Your comment would be just fine without the first sentence.
This 3 day old comment was not flagged until just now, what I said is not a swipe at all.
Somehow, I can't edit a 5-minute-old post.
Looking over account histories is standard moderation; of course we do that.
Not sure how you got from me responding to two of your posts in this thread that I was "targeting" you for something in some other thread.
Most things that approach a black hole aren't trying to hit it.