I wouldn't say that I feel 'tied down' but health issues make travelling (even short distances) difficult for me, so I have become a stop-at-home. I'm quite content with that but I suppose I'm also 'tying down' my DH who doesn't like doing things on his own, we've always done everything together, though at 80 he's not so keen to make long trips now. Neither of us really wants to be bothered with holiday planning, insurance, packing and travel delays now.
We have a dog, but we don't think of him as a tie. If we did go anywhere he would come with us in pet friendly accommodation. He is our shadow and would be devastated to be left in kennels.
Our children are all independent and don't rely on us for help in any way and our parents are long gone.
It is not how I imagined our retirement, and when we first moved here we were very active, but it could be a lot worse. Thankfully we still have each other and we keep ourselves busy. We're happy.