Easy there, the OP is a person who was following up on his first
posting on behalf of an elderly lady and the second post was a guy with
a somewhat larger scope of work than a simple change of a faucet. Both
are probably within an average DIYer's capability, but I wouldn't
expect my grandmother to change out her bathtub faucet (of course,
there's no shortage of family members who would do that for her,
including myself).