Personally, I would say wait until you are 35yo
Running a business is a more than full time job, for the first few years you will have zero income but have to work 80 hours a week

You should be going out, enjoying life, making mistakes, meeting people
THEN, when you have some ‘life experiences’ behind you, you can think about starting your own bussiness

im 29 and me and the missus have a small buis, lots and lots and lots of work, but the work isnt the problem, its dealing with the general public, to put it nicely they are f**k wits lol.

Our biggest killer is wages, electricity and gas, and you will need to employ people, also three rules i live by, never employ family or friends, never steal form your own buisness, always pay for everything you use personally, know that it doesnt matter how much money is in the buisnesses bank, it is not your money to spend. every buisness operator i know who spends buisness money for their personal use, always ends up going broke, and last of all pay cash for as much as possible