Thankfully I don't have any problems training my little peeps. I leave them for a few hours and when I come back they're level 4 or 5. They tend to reach level 8 in the early to mid 30s, even without all the career upgrades.

I have yet to get twins or triplets. Also missing the perfect match goal, but I'm hoping to be lucky one of these days.

Added some more tabs. One is events and the other is email. Feel free to comment here or on the spreadsheet page (there is a comment section in the top right I believe) with any missing or incorrect information. I'm still missing some information and I would appreciate any kind of help