Should the elderly be respected even if they're disrespectful because they're "old and set in there ways"

Ex. Grandma feels she has the right to barge in your house anytime she wants and gets upset you're not up early enough to let her in, say she comes banging on the door at 6 am. And once shes in goes around your house complaining your chores aren't done as if you're a kid and don't own and pay your own bills. And once you confront her respectfully, she says I'm your grandma and my opinion and the way I do things is always better.

Would you respect that and let her do whatever she wants still?

I've heard yes and no just want to see it as a poll.