Practical can be a matter of personal interpretation. To one person a hardwood floor that just needs to be dusted is "practical," to another person carpet which can be quickly vacuumed is "practical." When choosing flooring for a baby's room safety also needs to be taken into consideration. The more padding on the floor the easier will be the falls which will occur as your baby learns to get around. Small area rugs on hardwood can slip and slid creating a safety hazard for both children and adults carrying children. Additionally, there are the issues of warmth and comfort. I remember my grandson, Leo, when he was a baby spending "quiet" time in his room at the end of the day by laying on the floor on his back and playing with his jungle gym. It was a special time for him and anyone who was spending time with him, away from the rush and noise of the day and the rest of the family. His room was carpeted for warmth and comfort. I can't imagine him being able to do that on a cold ceramic, hardwood or vinyl floor without carpet and padding or at least an area rug and I can't imagine "Nana" (that's me) laying on the floor with him without some warmth and comfort. Of course any decisions regarding flooring also need to consider the climate in which you live, and any allergies or other special needs (i.e. wheelchair mobility, of family members).