Well, when we created our party the other week we ended up with... none of those. Seriously. INSTEAD, we have a Paladin, Barbarian, Druid, and Ranger (all human).
So there's no detecting or disabiling traps. There's no detect magic. There's no healing. We have a couple of meat shields and a ranged attack but without someone to heal them what good will they be?
This might be an interesting campaign... I think I'll start generating my backup character already.
I'm the paladin. One highlight for me? I'm the only party member with a natural 18 statistic! SWEET!