by TwitchBot
I agree with the others. If you're comfortable with the family version and you're ready to move to the full game, just deal 7 each of occs and minors.
If you play with fewer cards, you'll have some weird game balance problems, and the game will be different than it's supposed to be. It wouldn't really be a good way to learn the full version.
The biggest thing to remember about cards is that you don't want to play too many. Never play an occupation just because "it seems useful". Play cards when you have a specific reason to play them, but don't play them just because you can. The biggest mistake I see new players making is playing occupations and then never using them because they never should have played them in the first place.