Explanation
In Mexico, removing shoes indoors is not a standard custom; most people keep them on in homes. However, it is seen as a respectful gesture in very clean or formal homes, especially if the host does it first or if floors are pristine. Doing so without invitation might make the host feel they need to offer slippers or worry about your comfort.
Local Tip
Always wait to see if the host removes their shoes first, or politely ask '¿Prefieres que me quite los zapatos?' (Do you prefer I remove my shoes?) before doing so.
How it compares elsewhere
Removing shoes at the genkan is mandatory and expected in all homes.
Generally kept on unless the host explicitly asks or it's a no-shoes household.
Shoes are removed before entering homes and many temples as a sign of respect.