Extremely flat footed?!

Extremely flat footed?

My son just turned 13 has EXTREMELY flat feet.... I keep him in shoes that have good arch support..... Question... Is this something that a specialist should look at..... they do not bother him much.... but I have noticed he seems to have difficulty running....

Thanks in advance

I have had flat feet my whole life, it runs in my family. My feet didn't bother me when I was young either, but they did contribute to torn cartilage in my knee. The doctor told me flat feet cause misalignment in the knee which can cause the knee cap to rub cartilage. This may be why he has problems running.
Now I'm in my 30's and I have bunions and plantar fasciitis. Both can be very painful. I would suggest taking him to a podiatrist to see if something can be done now to help. Most regular shoes don't come with enough support for flat footed people.