A couple of stories can possibly answer your question.

The David Byrne of the Talking Heads gave Tina Weymouth a bass guitar and coerced her to start learning it
against here initial objections because his budding art rock band needed a bassist. She became famous
and rich with the Talking Heads and The Tom Tom Club.

I think it was Paul Kantner (I could be wrong) who saw Spencer Dryden sitting in a Marin County restaurant;
went up to him and said, "You look like our drummer". Having never played the drums before, the stylish
Dryden became the Jefferson Airplanes drummer.

I, personally, have taught over 2,500 people to play the drums or percussion or bass guitar in my life as a music teacher and this I can tell you: Every single person I know who felt a strong compulsion to learn an instrument became a good musician.

The fact that you would even consider such an idea tells me that you should follow your heart and ignore
the judgement of insecure people.

It's always the people who have the most insecurities who are the greatest naysayers to other human beings expressing themselves
creatively.

I say, if you feel the strong desire to get a keyboard, then I'd go for it and,
" damn the torpedoes, full speed ahead" as they said in World War something or other.

Firstly, you might consider looking into a good inexpensive Midi controller and use it to control
VSTi instruments in a laptop or desktop computer.

There are wonderful freeware versions of great synthesizers.

You might check out my Audio Plugin Junkies Annonymous tribe........join it and post
a queery about suitable beginning keyboard 'soft' synths.

Good luck!