2 preflop hands

[celiboy]

Hand 1 - no reads/data

Hero has A/J off UTG.

Hero calls, 1 fold, UTG +2 raises, 3 folds, button calls, blinds fold, Hero folds

Was this a terrible fold? I'd be getting close to 7:1 on the call, but this hand is so easily dominated......

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Hand 2 - I have 350 hands on the button and 0% defense on blind steals

Folded to hero in cut off with a pair of 7's.
Hero raises, button reraises, blinds fold, Hero calls

Flop
j/3/5 rainbow ........Hero checks, button bets, Hero calls

Turn
8.....................Hero checks, button bets, Hero calls

River
10....................Hero checks, button bets, Hero calls

I am mainly interested in the preflop reraise and whether I should have dropped the hand preflop given villains 0% blind defense over 350 hands.