I live in a 1920s home. No asbestos that I know of thankfully but it does have lead paint that's been covered by 20+ layers of paint. The windows are the biggest concern since they are original and in relatively poor condition. They are painted shut so no issues of paint chipping off during opening. Unfortunately single pane windows are just prone to condense water which leads the paint to chip so annual re-painting is what I do. My young toddler loves playing on the windows and there's not much one can do to stop him. I just try to wash his hands before meals.

Also it's frustrating because I asked my pediatrician for blood lead test and they wouldn't do it as they said it's unnecessary. I am going to switch doctors and try to push harder at the next checkup. I've heard there is a finger prick test that's not very good and then a blood draw that's actually fairly good but of course more invasive.

I'm sure the neighborhood has lead all over in the soil so it'd be nice to keep an eye on the levels. There's also some more modern concerns like the shredded tires used in one playground or the crumb rubber used in another.