I am an old cogger who has not ridden since 14 years of age. But I've taken up this activity with several goals in mind, the first one being help with increasing upper leg strength. Anyway, I intend to do 99% of my riding within our subdivision. I hadn't even thought about a helmet until a couple of people commented that there are times here when deer can jump out at you. We DO have a lot of a deer and admittedly, they will appear at the most unexpected times, sometimes 5 or more. So -- I am now in the "considering stage". A couple of questions:

The dang things, in addition to looking like something out BattleStar Galactica, look very uncomfortable. Is that the case?

Are the headbands plastic too, something of a softer material?

Do they make big sizes?

How much should I expect to pay for a good quality helmet?