I strongly suspect that it is lack of confidence reversing into the original location. This does not excuse or mitigate it. As a nation, we are poor drivers when it comes to reversing.
Even in a town car park, it often makes more sense to reverse into a space and drive out (better visibility). Yet most cars drive in and reverse out.
Worryingly , I know many women my age who still giggle about ther own reversing and put themselves down in a strangely and inappropriately 'girlie' way. This seems condoned and supported by husbands or partners. It makes me retch just a little. It is too widespread to be just a quirk in one or two women or their overbearing or patronising partners. I do not say that men are generally more competent drivers - far from it - but that they seem less likely to be cutesie about a perceived lack of ability. (I know men who say I'm 'lucky' to know how to cook and they wish they could, so I guess it works all ways).
My wife is the superior driver in our household and (thankfully) impressed upon our daughter that you can either drive or not (she likes quoting Yoda on this, despite disliking the Star Wars films). There are no 'opt out' parts of the skill set. We have a very tricky drive to back into and we love to hear our eldest now nailing it every time.
Reversing is taught in the UK as a specific skill you need in one or two situations and only (by implication) to pass your test. Daft, but so are many things.
As to avoiding it, look for the presence of a driver, the car moving on its springs, lights flashing as brakes are dabbed and reverse selected, crowd of people waving bye-bye, front wheel turning while stationary. On regular routes, there are places you come to expect it. Be careful, as ever.
.
