Probably won't be an issue, but it's worth keeping in mind that all flat "grassy" areas (yards, areas around sidewalks, etc) come with a very real risk of stepping on a small cactus with razor sharp thorns that will go all the way through just about any shoe or sandle. Loose sand is generally safe, grassy yards can be dangerous af. Some houses have brought in sod & work to keep the cactus out, but that's not really the norm.