Ah OK. If you don't need it as a sustainable income that's a bit different.
I think getting a job or even volunteering with a local florist to get some experience is a very very good idea. as @ZenNudist says. It will give you some idea of what are the practical matters . So eg @countrygirl99 is right - you will need a large space to assemble / arrange flowers and keep them cool before delivery. Also, if you take bookings you must be certain of a good supplier to get the flowers in good time & then obviously a means of delivery.
I don't want to put you off at all , but whilst it sounds like a lovely job , it is as others have said hard work and logicistically challenging. Also think about cash flow as @2tell mentions - , you will need to pay for everything before delivered and flowers can suffer in extreme heat etc , as well as storage space , buckets , all the equipment .
I think you need some experience with an established business first. People do do it successfully but it is hard work and logistically challenging and I can imagine having to manage sourcing flowers and getting them out to deadlines is probably quite stressful at times.
Do try to get some experience and see if it is for you before you try to strike out on your own , I would say. If you don't initially need it as a income you have the luxury of learning the ropes for a while
But that said - good luck. 💐