I’ve done a few go-arounds, even on ENVA’s 2900m long runway… That was a big wind gust just before touch down with the SkyWagon (tailwheel). But also a few on the short grass fields around the area. If you don’t touch down on the very first part, you need to go around (I’m talking 400m long grass runway with some hills and trees around).
if you fly at busy uncontrolled fields, you’ll do a go-around occasionally. Runway length or pilot skill is not the issue. People don’t see you on final and take-off in front of you. The radio doesn’t always work. It’s SOP to calmly pull right and go around in that circumstance.
I remember once in my slow Luscombe flying off one guy’s right wing on his initial upwind, reading his tail number and then saying “123AB look off your right wingtip” to him. He had no idea I was there until that point 
Peter wrote:
I don’t think I have ever gone around from a landing unless there was a runway obstruction.
I’ve gone around many times if I did not like the position I was in, mostly on short runways. Speed, height, track e.t.c all have to be stabilized down to the touchdown point. If not, you can sometimes “save” a landing if the runway is very long, but very often going around and do it again properly is the far safer variant.
I had an AAIB accident about 30 years ago. The AAIB report was accurate and fair. A magazine comment on the report was not.
I do not regret my decision to abort, knowing I couldn’t stop before the fence.
The Jodel was repaired and I flew her back from Stronsay to Inverness a few days later.
Had I continued a serious accident outside the airfield was very likely.
As well as standard “Go Around”s I’ve recently had strange circuit variations due to VFR GA aircraft occupying the runway much longer than ATC expected at a busy time with commercial traffic.
Silvaire wrote:
saying “123AB look off your right wingtip” to him
That was good and reminded me of my incident
