If your child is under 18, then your dividends would still need to be shown on your tax return (a law called s.660b).
Also, any transfers of shares to a connected person – apart from a spouse – would mean that the shares must be valued at market value and Capital Gains Tax may be due – so a tax calculation will be needed.
Finally, if you do transfer shares to a child over 18, you must make sure any dividends go to the child and don’t end up back in your hands – otherwise HMRC may consider it to be tax manipulation.
If you have a genuine desire to pass on the business to your child – you should seek advice.