Forgetting for a second their significant paychecks for a couple of minutes of work, I would not want to be an NFL kicker. The Saints just cut Garrett Hartley for losing his mojo. And while Justin Tucker is living the high life today, there are plenty of other kickers that have recently curled up in the fetal position in some dark corner (see Gould vs Min and Feely vs StL).
Imagine your neighborhood gathering in your bedroom while your trying to make love to your wife (or fill in the blank). Half of them are rooting that you can't get hydraulics and perform. The other half has bet this month's mortgage payment on you hitting it out of the park. If that's not bad enough, your wife can hold tryouts any time she wants.
Just saying...lots of pressure and no blue pill for kickers.