My daughter is 3 years 11 months and completely omits the 's' sound.
So she says 'lippers' for 'slippers' or 'leep' for 'sleep'.
It's very cute
but she starts school in September and people often don't understand what she's saying.
Is this normal? I've got 5 children and I've never had this with the 's' sound. (She's the youngest).