My two-year-old hasn't started walking yet, though he can stand up on his own and walk with support. My wife and I are worried about it. Should we go to a doctor or wait for some more time?

diffrent children has diffrent steps of growibg up.i hav 4 kids as i can see they each got diffrent steps example my 1st walks when he is 9months,2nd 1yr plus,3rd 1yr and the last boy 9 months..we can train them slowly don have to force them.One day he/she can do it all by themself.