It is not government or hospital advice to stay at home or away from the clinic if you are well, but you should consider how you will travel and how you will follow the above advice. For children who are infirm however (e.g. children who have frequent chest infections or breathing difficulties) you should postpone the appointment or to have a telephone or video consultation instead.
Please do not attend the clinic for any reason if you have a high temperature (over 37.8 degrees) or have a new continuous cough or streaming nose or flu-like symptoms. If you do have these symptoms please follow Public Health England guidance to stay at home for 7 days, https://www.gov.uk/government/publications/covid-19-stay-at-home-guidance. Everyone attending clinic will be asked a set of screening questions in this regard.