I like little swallows. Why don't swallows nest in my house? I often rest on the rope hanging clothes upstairs in my house. Do swallows choose geomantic omen when building nests?

My family has a swallow's nest, and swallows live in my family. They regard my house as their home. They bring a family of six and wear bright clothes every night. Very happy. Swallows choose where to nest, depending on the people there. They are kind and won't bother them. I didn't notice or move when the swallows built their nests in my house, or they left. I had hoped that swallows would nest at home, but I didn't wait. In fact, swallows build nests not just to see their homes. Some people are very kind to them, they will observe them, and they will go to other people's homes to see if they can build nests. Generally, the beams at home are very high and there is room to support the nest. Besides this family, they don't think it will hurt them and won't move their nest. They will choose their own home, and they don't like children who love to move their nests at home to build nests.