As many on here have already stated by the time you hit 30 old, bravado has gone by the wayside and you've learned how to decline booze you don't like. You know what you like and you know how to order with confidence.
For me, besides not touching gin, I don't drink tequila in mixed drinks but I'll do the occasional shot. Not a fan of Irish whisky, scotch whiskey, brandy or cognac.
I like middle of the road vodkas- Tito's or Absolut are fine.
American and Canadian whiskeys, bourbon, dark rum and spiced rum.
I think my liquor cabinet currently has Absolut, Sailor Jerry, Crown Royal, Bulleit Bourbon and Johnny Walker Red (for my dad when he visits).
That's plenty enough choices for a weekend cookout or short notice social at a house.
3-5 types of liquor and a few different mixers.