Good as electronic keyboards may be, nothing can give you the "feel" or "touch" of a real piano.
My suggestion would be, especially if this might be a passing phase, to buy a reasonable second hand piano, get it tuned properly and have lessons. You will then get proper playing techniques.
If there is a real enthusiasm, you can get a better instrument and/or an electronic one later. It can sometimes be quite difficult to start with a keyboard and move over to a traditional instrument.