KayAnn, I'm sure Simba could get used to being around other dogs, but maybe there is a more controlled setting you could start introducing him in. Taking dogs through obedience classes is a good way to get them comfortable being around other dogs. Around here we also have doggy day care with playgroups for the dogs. I would think it might be better to start there instead of a dog park where who knows what kind of dogs will all be running up in Simba's face at once.

Good luck!!