When it comes to relationships though, adults are settled by the age of 37.
But while men are satisfied with the way they look by the time they reach 34, it takes the typical woman more than two years longer than that to feel happy with their own appearance.
It also emerged that as a result of feeling comfortable in their own skin and‘unapologetically themselves’, 72 per cent of adults feel more ‘content’ in life.
Victoria Betts from shoe brand Hotter.com, which commissioned the research, said: “Feeling comfort is crucial to being happy in life.
“But there are so many different areas in life to feel comfortable in, and it’s no wonder it takes Brits until their 40s to tick them all off.
“Our results found nearly seven in 10 adults think it’s important that people should be allowed to be unapologetically themselves.
“But for many, the desire to fit in, not make waves and go with the flow means they don’t have the confidence to do this until later in life.”
Comfort in later life
Men also feel comfortable to speak up and have their own opinions heard a full five years before women (45 years versus 40).
One in three adults believe becoming a parent was key to them feeling more comfortable in themselves, and a quarter put it down to learning to drive.
However, 29 per cent think it took retirement to generate the self-confidence they needed in life, according to the OnePoll figures.
Being more comfortable in their own skin made things like speaking in front of a crowd easier for 28 per cent of respondents.
And 39 per cent no longer dread meeting new people and fumbling for ways to make themselves sound interesting.
However, one in three believe they didn’t feel comfortable in their own skin until later in life than they imagined when they were younger.
TOP 15 SITUATIONS IN LIFE THAT HELP BRITS FEEL MORE COMFORTABLE IN THEIR OWN SKIN:
1. Becoming a parent2. Getting married3. Retiring4. Going travelling5. Learning to drive6. Getting on the housing ladder i.e. buying my first home7. Becoming a grandparent8. Losing weight9. Getting a promotion10. Graduating from university / a course11. A big birthday e.g. 50th12. Achieving a personal goal e.g. writing a book, running a race13. Getting engaged14. Going on a solo holiday15. Getting divorced