It is normal young people have no COVID-19 ?

Where I live 24% of those with the virus are in the 20 to 30 year old range. Most population break downs don't cover that range exactly but my guess the percentage is pretty close to the US average for that range.

What do you mean: "Is it 'normal' for young people to have no COVID-19"??  It's 'normal' for any one, at any age, to  develop a corona virus. (And that's all COVID-19 is - a name for a corona virus). 
COVID-19 isn't the name of a unique disease; it's just the name that's been assigned to this year's strain of a corona virus.  Just so you'll know: CO means Corona; VI means Virus; D means Disease; 19 means the year (2019) in which this particular strain of Coronavirus Disease first emerged.
Yes, a young person of  20-29 years of age (or a person of any age) can have a corona virus and be asymptomatic. They can have no symptoms at all, and might never even be aware that they've got (or ever had) the virus. 

It has long been known that CONVID-19 affects most older men(affects lesser for women)who have underline illnesses like respiratory illness and heart trouble. People who smoke no matter how young have weaker lungs that can increase your chances for the virus. I live in Houston, Texas, and I was disgusted to see so many young people at the beach in Galveston without masks.America is a free country and you are free to die at your own leisure!

harrald

Not anymore; even small kids and infants have gotten it, show symptoms and died. Even older people are showing no symptoms, there appears to be no real rule anymore

yes.  but we've seen cases of both too.  

i heard younger people dont usually get it