This topic has taken a bit of a turn. Size of vehicle, layout of parking lot, size of bays, and number of vehicles all have a bearing on how you park. Regardless of this, you are largely wrong.
Firstly, if you can't reverse park as quickly as pulling in nose first, you shouldn't be behind the wheel of a car. Vehicles are getting bigger, and developers are trying to make more money. Parking bay sizes have declined, but so have the drive surfaces between bays. I drive a bakkie. The thing is unnecessarily big, but it is what it is. It's a necessity for work. If I have to forward park at Harbour Bay, it usually takes me going part way into the bay, reversing and then straightening into the bay. The reason for this threefold. The drive surface between bays is not wide enough to allow for a decent turning arc. The bays themselves are so short that most vehicles stick out of their bays, leaving less turning space. There are usually other vehicles like mine that front park and leave even less space. Reverse parking is just the second part of a three point turn. If you can't do that in one smooth motion, get off the road.
Secondly, you can check the way other drivers park. Most people who park nose first will edge over to the left of the bay slightly, especially if they are alone. This gives them max space to exit their vehicle. Not everyone allows for their passengers to exit before they park in a small space, like
@Craig_ mentioned the other day. This means that you can reverse park in the middle of your bay and have maximum space to exit your vehicle.
Thirdly, most vehicles are slightly higher at the back than the front, and in the case of my bakkie, significantly so. This allows most people who can drive, the ability to pull deeper into the bay when there are high curbs, beds or hedges, especially if you're equipped with a reverse camera. This gives other drivers in the lot more space. Something to remember if you're a considerate driver.
Fourthly, you don't get good at anything if you don't actually put some effort into it. For some reason people think once they have that little green card, it makes them good drivers. No one does a competency and turns into a crack shot that can hit a pool ball at 1000m. If you want to become a good shot, you're going to spend hours at the range and fire thousands of rounds. Question someone's ability to drive though, and all hell breaks loose. Do yourself a favour. Go to a nice big empty area. Put up two poles far enough apart that it gives you a ruler length of clearance each side of your car (mirror width). Drive between those poles at 100km/h. Most people are pretty cocky when it's pool noodles. Rather put in rebar. Let me know how you do.
Lastly, you don't have to believe me. Just look at the stats. The number of parking lot accidents due to reversing from a bay vs first move forward sits at 91% in the USA, as per the AAA. Number of fatalities at 90%, often being kids due to not being seen. There's a reason why fleet management companies aggressively enforce "first-move-forward" policies. Cost, downtime, insurance premium increases and law suits have led large fleet managers to monitor gear shifts and positions with first move, and drivers are penalised accordingly. The stats don't lie.