Can my husband pass on his alopecia universalis to our kids?

Very unlikely: This is most often from alopecia areata which is a sporadic autoimmune disease. Even if he does, there's no point worrying. I'd imagine that have a totally smooth husband or wife would be really nice. I know bodybuilders who have all their hair removed. 95% of good looks in a man or woman is physical fitness and overall self-care. That's entirely under your kids' control.