Sure you do. For one thing there’s always going to be a little adversity. Life has lumps for all of us to swallow, our heart will be broken, will will bury relatives and friends, not all things work out even for the most comfortable. And you can always learn because there’s nothing better to do today. Most of my learning has been picking up books on topics of interest, with the only adversity being a dull afternoon.
I’ve never believed in the sanctity of adversity. I think it’s a trap of bad thinking. It doesn’t make good character, and it doesn’t provide admirable goals, and should be avoided as much as possible. The only lesson adversity ever really provides is that sometimes life sucks, which really doesn’t teach much.
It teaches that sometimes life sucks, and implicitly that you're not entitled to a life that doesn't.