Potty training????

So my little girl tried sitting on her dolls potty last week (I assume she’s seen children at nursery doing this) so my mum bought her a potty. We showed her the potty today and she tried sitting on it, so we took her nappy off and let her sit on it…. When she got off there was a wee in there, I was absolutely shocked 😂😂I kind of let her go along with sitting on it as she loves copying others and role-play but absolutely did not expect her to wee I am assuming this is just a massive coincidence but has anybody else’s baby shown an interest in potty training??