If you think your daughter will love home education in the longer term, that is reason enough to do it.
In normal times you'd need to make a decision quickly about whether to deregister her from school, because if you kept her off school without deregistering, then fines and a truancy prosecution would be coming your way pretty quickly. But with coronavirus in the picture it's different. You can take your time about it. Schools may not reopen for a long time and even when they do, there might be a phase during which government are less gung-ho about requiring attendance - they'll have to recognise that a proportion of children (or their family members) are particularly vulnerable to CV. It won't look good to force attendance where that would endanger lives. So in these strange times, you may be able to effectively home educate while leaving your daughter on the school register for a while longer.
There are two reasons why I would suggest leaving your daughter on roll for the time being, with a view to deregistering only when the LA start pushing her to attend. The first is that there might be some things which the school can do to help you. For example, at the moment children entitled to free school meals can receive food or vouchers if they are on school roll, but not if they are home educated. School may provide free access to educational subscriptions to online services etc. Possibly not a huge factor for you, but it couldn't hurt.
The second reason to delay deregistration is that at the moment home educating parents are still expected to provide their children with a satisfactory education, while those who usually use schools are being cut more slack on that. Obviously you will be providing a good education, I'm not suggesting you wouldn't! But as soon as you deregister, the LA may start requesting information about your child's education. You'll probably be involved in at least some routine correspondence with them about that, you may need to submit a report etc. Some LAs are very badly behaved towards home educating families, for instance by misleading them by implying that home inspection visits are compulsory, or that they must do formal school-style lessons. Such deceptive practices can create stress for families who are new to home education and finding their feet.
Dealing with the LA needn't be too daunting if you are connected with other home educators who can point you toward the relevant legislation and provide advice on drafting letters and reports. You can ask here or on other local or national forums. But there's no denying that it's a hassle, and you probably have better ways to spend your time. By delaying deregistration, you can delay the time when you have to deal with your LA until you have some experience under your belt and are more settled into your way of educating.