'Inter_cultural marriages"

In some cultures in west africa especially Nigeria,many cultures still dont allow their kids to marry from another tribe and these has left most ladies single even at age 40.The first daughters of most families suffer this alot,this is because such parents insist on following tradition.Should we follow this type of tradition and allow our children suffer,even when they find "love"from another tribe?Parents should understand that it is happiness that is the utmost and not where the person comes from.An instance is the case of Emeka a medical doctor who is in love with Kemi  a banker,Emeka been the first of four children  is expected to marry from within  their locality,and his parents have vehemently refused to grant him permission to marry Kemi,because Kemi is a yoruba girl.This year makes it their fifth year in courtship.The two love birds have refused to give up on love.Kemi's parents too are saying she can"t marry Emeka.My point is for how long do we have to keep our Children"s happiness onhold?Must we marry someone from our village?Love for me is the most important and where you find it doesn"t really matter.