An FT poll of 4,000 workers in the US and UK shows adoption is heavily skewed towards the best-paid workers: more than 60 per cent use AI daily, compared with just 16 per cent of the lower earners.

Link here.  Note also that the youngest workers are not those who use AI the most, rather it is workers in their 30s.  Men in the workplace are using AI more than women are.  A very good piece by Madhumita Murgia and John Burn-Murdoch.