Embark on a taco tour
Don't poison your family with strongly opinionated views on the San Antonio taco scene -- let them decide for themselves. Take them to breakfast at Taco House, lunch at Ray's Drive Inn, and dinner at Datapoint. They might be sick of tacos by the end of the day, but at least they'll have formulated a strong opinion about which joint is better.
Ingest copious amounts of beer and wings at Cullum's Attagirl
Not all restaurants need history or tacos to be worthy of a family visit. Cullum's Attagirl is good enough on its own. Go impress your dad by eating three servings of the dangerously spicy Nashville hot wings, and bond over a couple pints of your favorite craft beer.
Check out the St. Mary's Strip
If your brother or sister is dying for some younger crowds, but you're not looking to pay exorbitant amounts of money to make them happy, the St. Mary's Strip is where you need to be. Home to Hi-Tones, Paper Tiger, and The Mix, there's plenty to do and plenty to see. Start with a couple of tallboys at Hi-Tones, progress to mixed drinks at The Mix, and end the night with live music at Paper Tiger.