I think it's all mental.
I would prefer to date/marry an individual, but I wouldn't want to feel like this person was making me settle for grandpa/grandma life.
I think life is always about expanding your horizons and trying new things, I don't believe in boredom and nothing is worse than dating someone and they wake up one day and they're like "oh ya, i'm a little bit less interested in you today than I was yesterday..." wooops surprise!
How can you get bored of your spouse when you experience all of these things with them and even have children with them,
ya I can understand that things get a little predictable sometimes. but that spark has to stay.
Tamer, yes. But mentally only.