I personally will be on oral estrogen as long as I can swallow, unless I were to develop a legitimate medical contraindication, of which age is not one.
I will obtain it from the NHS as long as I can, but thereafter would rather pay privately and get the treatment that is best for me as an individual rather than have someone try to dictate that I should arbitrarily switch from an established treatment which I have been stable on for a long time, to something I don't want.
I think if you are willing to try patches, at the very least you should ask for a written agreement from your GP that if the patches don't suit, your first choice treatment can be reinstated.
A couple of things you should be prepared for are the dose shrinkflation that often happens when women switch preparations - the replacement is often prescribed at a lower dose equivalent in the hope you won't notice you have been short changed, the fact that patches often do not stick well and you may need more than the two a week that the prescriber thinks you need, which may or may not be a problem if you get someone who is really rigid and ignorant, and that you may need additional paraphernalia to get the patches to work optimally, such as rubbing alcohol to strip the oils out of the skin before applying, and adhesive dressings/tattoo film to stick over the top.