Josephine But not everybody wants to perform.
Too right. Not everybody wants to perform or needs to perform.
Also ... I'm confident that anybody that has spent enough time on learning, developing, training in various aspects of piano and music will feel right at home on pretty much any piano.
Basically, it and music becomes a part of you, and the music is with you and can be generated by you one way or another on any piano, provided it works or mostly works.
And ... not that it actually matters, or at least not to myself ... I know that if one has developed to a particular stage ... people that see you play ... physically see you play will know that you know what you are doing, and music is in you. I just say it doesn't actually matter because I learn playing the piano for the love of piano and music. But I do like to share my music sometimes ... only to show some different sides of it, and that people can enjoy too.
It's a love of them thing (piano and music and sharing and maybe inspiring), and a fascination about how notes and sound can all combine in sequence from various different instruments to produce something so amazing ... so extraordinary. It's like a huge credit to the people that accumulatively came up with all these techniques and music throughout the times from the 'beginning' ... up to now ... and into the future. Amazing.
Also ... very importantly, no matter what level anybody is, we all had to start somewhere. And beginner area ... however that is defined, is indeed a special and wonderful area.