Eric, who was born on Valentine’s Day, was spotted with mum and dad on the Miami beach, which left some fearing for his safety due to the amount of flying he has done.
Simon, 54, hit back, insisting: “Eric is 100 per cent doing brilliantly.”
He told a UK newspaper: “I just want people to be clear that, yes, he has gone on a plane very early on, but the pediatrician in New York cleared him to travel.
“We would not have done it otherwise. We would never dream of putting him at risk.”
Some people hit out at Simon and Lauren, 36, for taking Eric to the beach, following pictures of Simon’s Yorkshire terrier dog seemingly licking the baby’s face.
Simon defended this, saying: “Our Miami hotel room had no natural light. It was like being in an igloo, so we decided to go to the beach.
“But then we went out, there were literally 50 photographers out there. They were poking their lenses under the canvas to get shots.
“The dog wasn’t licking [Eric’s] face, he was sniffing him. What I wanted was for the dogs to get used to him. My parents did just the same for me when I was a baby and we had dogs.”
The Britain’s Got Talent judge insisted that pictures aren’t always what they seem, and that he and Lauren are not bad parents.
He said: “I know that there will be photos where Eric looks like he’s in the sun, or photos where it looks there’s a dog in his face, or it looks like we aren’t being great parents – but that isn’t the case. We are taking great care of him all the time.”
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