No l

We just realized the other day my nephew can not pronounce L. He has an L in his middle and last name and nobody noticed till now. He is 4 and I am wondering if it is just a age thing or if they should get him into speech class? He hears it and knows what he wants to say, but it comes out sounding like a W.

I would see about a speech class. However, sometimes when children are that young it is the shape of their mouths or something simple like that and he will outgrow it. Have they noticed if there is any other letters he has problems with?