If you lose mental capacity, life can become very difficult for both you and your loved ones. Decisions over medical care, where you live and daily routines need to be made. This gives your chosen friends and family the ability to look after you by making decisions without having to go to court. It also reduces or removes the risk that the wrong person will decide these things for you.
The P&F Attorney helps or makes decisions about things like Money, Tax and Bills. They can help with bank accounts, property, investments, pensions and benefits. Unlike a H&W Attorney, the P&F Attorney can advise you whilst you have capacity and make decisions for you as long as they have with your consent. In some respects, this is possibly the most important Attorney.
Short answer is yes, everyone needs a POA. You can only create one when you have 'mental capacity', so by the point you realise you will need one soon, it's potentially already too late.
Someone without a POA will be appointed a Deputy by the courts. Anyone is allowed to apply to be your Deputy and it is up to the court to decide who is best qualified and placed to be one. The risk is, it might not be who you would think or want to be in charge.
Applying to the Courts of Protection can take up to 6 months. This can cause big problems since without the capacity to manage their finances, access their money and make decisions - a broad array of issues stressful and difficult issues can present themselves during an already difficult set of circumstances.
Applying to be a Deputy is not only time consuming but very expensive. It can easily run into the thousands if legal representation is required, along with having to pay court fees, application fees and various other costs. These are not refundable if you are unsuccessful. There also additional annual fees to consider.