Do you treat your pets better than your family?

My husband and kids are always saying that I treat my cats better than them. I don't know what they're actually driving at here. I feed the cats from a plate on the kitchen floor, they only get water to drink. They have to go toilet in a tray or they have to go outside. OK I do let them sleep on the bed but i have never made my husband or the kids sleep on the sofa. I regularly take the family travelling with me but i have never taken the cats anywhere abroad. Thay do get to sit on my knee and I pick them up for a cuddle but I did with the kids when they were small enough (now they'd crush me). Does anyone else get this type of jealousy or can you explain the phenomena?