I'd vote no, because then we'd end up with people like Boris Johnson or Liz Truss as our head of state(!!) The monarch nowadays is important for what they prevent. The Queen stood in the way of someone like Boris getting access to all the 'bling' of state. A big shift would need to occur before we could become a sensible republic, particularly in dismantling a lot of the ceremonial aspects of British life. Perhaps even a collective head of state like the Swiss could work.