Like cal said,and he has done both.
Comp cooking and motorcycle racing can ne compared a little.
Cooking good food for friends,family and the neighborhood can be a pleasure and something you can choose to do to suit yourself.
Cooking comp will be to a standard you may not agree with,on a schedule you don't like,doing 90% of your time prepping and traveling and spend as much as your house cost.
Riding a bike you prefer for pleasure ,of your choice,and get by with $20 in fuel and parts,when the weather suits you.
Riding it for comp,can easily cost hundreds of thousands,on someone else's schedule,location,weather,type of bike, and spend most of your time just getting there.
You can really learn to love doing it for pleasure and learn to suit yourself.
On the comp side,you rarely ever learn to suit yourself.
Just a couple of thoughts.