Grammar fix

young adult

person in late teens or twenties

A young adult is someone who is no longer a teenager but not yet fully middle-aged, usually in their late teens or twenties.

collocationB1common

Hear it in context

Notice where the phrase sounds natural.

Many young adults move out of their parents' homes when they start university.daily life
As a young adult, I think it's important to learn how to manage your own finances and make independent decisions.IELTS speaking

Pattern: young adult (noun, countable); a young adult / young adults

WrongHe is a young adult man of 22 years.

RightHe's a young adult. / He's 22.

'Young adult' already gives the age band — no need for 'man of 22 years'.

Patternyoung adult (noun, countable); a young adult / young adults

Choose the version that sounds natural in speech.

Stiff Individuals in the early stages of adulthood frequently relocate.

Natural Young adults tend to move around a lot.

Natural; 'individuals in the early stages of adulthood' is census language.

Words that usually travel with it.

Not the same as 'teenager' (13–19 years old) or 'adult' (anyone over 18, but often older).