Daycare lets parents walk into infant/toddler rooms with dirty shoes and management won’t do anything about it

I’m getting increasingly frustrated with something at our daycare and wanted to see if this is normal elsewhere.

Parents are regularly walking directly into the infant/toddler rooms with their outdoor shoes on. These are the same shoes people wear outside in parking lots, public bathrooms, sidewalks, etc. The kids crawl and play on the floor all day, so it just seems really unsanitary.

I raised this concern with the principal/director, hoping they would set a simple rule (shoe covers, no shoes past the door, or parents stay at the entrance and teachers bring the kids out). Instead of addressing it directly, the director basically passed my complaint to the teachers, which made it feel like a parents vs. teachers situation.

That obviously wasn’t my intention. I’m not blaming the teachers at all—they’re already busy taking care of kids. But now it feels awkward because the issue was framed as if I’m complaining about them.

What’s frustrating is that nothing actually changed. Parents still walk straight in with dirty shoes, and it seems like neither the director nor the teachers really care about fixing it.

Is this normal at other daycares? Do most places have rules about shoes in infant rooms? I feel like this should be a pretty basic hygiene standard, especially when babies are literally crawling on the floor.

Would appreciate hearing how other centers handle this.