Taking care with language
When constructing adverts, think carefully about the meanings and implications of the words you are using. It is very easy to use words that seem innocuous but may have a discriminatory effect.
For example, asking for "young person" would almost certainly discriminate against older people. Lots of employers also use the word "mature". In our experience most employers who include this are looking for someone with a sensible and professional approach to work, but the word "mature" implies an older person and could be discriminatory.
Another common example is describing the company or team as "young". This might give the impression of an environment that an older person might find it harder to fit into or, worse, might even be unwelcome.