Havn't had time to read all these comments, My daughter is 17, and has moderate hearing loss, which was discovered at about age'd 3/4. She wears hearing aids.
A few thing's i'll say, try not to worry, My DD is in a main stream school, and with support from a TA & TOD manages really well. The hearing aids can be made bright with pictures in the molds, you'll also get stickers for the aids which make them more attractive (ours are pink glitter with DR pictured molds & flowery stickers. Your DC will probably love their hearing aids, I know DD does. Just remember to introduce them gradually. I let DD take hers out for a break when she gets in from school before starting home woke, and then again after she has finished it.
I'd also recommend trying to get the softer molds, they are easier to put in, in small children
The Children s audiologist & hearing aid specialist, should refer you to a community pead who is usually fab at getting to the bottom of the cause of hearing loss.
I've found the TOD very useful, she has given us information about local support groups, county meets and fun days for deaf children.
The only thing i will say, is we really have to push to have DD's educational needs met, because she is only moderately deaf, She doesn't seem to get much time with the TOD, In fact i don't think DD has even met her. Although she phones me from time to time.
The NDCS are also fab. We're going on one of their group events in a few weeks.
Try not to fret over it all too much, i know it's such a shock when you're told your child needs hearing aids, all the thoughts you go over, but it's so not as hard as it seems. Please don't feel you've done anything wrong.
I can assure you DD leads a perfectly normal life, only needing minimal extra support, which is met in a main stream school using radio aids. She has loads of friends at school, and is learning reasonably well.