supporting all during classes - conflicts in a multicultural/involving fathers society

As an infant massage trainer, I have to guide students to consider various potential and often common scenerios that occur during infant massage classes. But, after more than 13 years of teaching, I heard of a scenerio that it never would have occurred to me needed consideration. Even though I am aware that the UK is a multi-cultural society and that the role of fathers is supported, particularly though children's centres, so that they feel they have an important place in their child's life, I never gave brain space to the potential clash that would occur if an Islamic woman attending the same class as a father of twins.

The exact scenerio, I hear you asking is, what do you do if on the first week of a course a mum arrives wearing an all enveloping burqa, but feels safe to remove the face-veil, once ascertaining that only women are present. However, in week two, a mum with twins turns up, not only late (which meant the face-veil was already removed) but, unexpectedly, the latecomer's husband is in tow! What happens is the mum, now without face-veil, hastely removes herself from the class, even though only half-way through the massage sequence, never to return again....

So, how do you handle this type of situation? The particular infant massage teacher offered one-to-one sessions for the mum, so that the new information will not be lost and the learning experience continued. But, how do you get that particular parent to feel secure about joining your classes again? If we prevent dads from attending, just in case they are not welcome, we are undermining their position as caregiver to their baby. Is it necessary to only have either mum or dad sessions? But does that leave out the ones that work and can only make one or maybe two sessions. Witht the twin situation it seemed feasible, in fact beneficial for the dad to attend - but to the determent of another participant. This is without doubt a difficult scenerio to deal with.