Not Islam. If you are born to a muslim father, you're automatically muslim. If you grew up as a muslim, and if you leave Islam, well guess what ? You're going to hell. Apostasy is forbidden.
But yeah, I have muslim friends who don't care about religion. They drink, they don't fast, they don't prey. Some of them even became agnostics or aheists. But they keep it private. When they meet their families, they still act muslim. And by that i don't mean they display proofs of their faith, just the general attitude, using religious " sentences " (i don't know how to say it) to greet someone for example etc...
And the funniest thing is that, most of my ex-muslim friends, even though they don't consider themselves muslims anymore or they see themselves as " not-practicing " muslims, still have to endure bigotry because of their names. They're automatically considered muslims by most people or institutions, either because of the way they look or because of their names or both.
So nah, it's not a choice. It's far very far from being one.