I don't have toddlers for long sims 4

You can expand the lifespans of your toddlers from short to long if you so wish:

• Click on the top right Menu button > Game Options > Gameplay > Sim Lifespan > Long

Hopefully this helps - I know it made my toddlers' stay toddlers for much longer

:eahigh_file:

This is usually related to an incompatible mod. Are you using mods ?

If so, please remove

I've done this already and still no avail. my toddler sim will age almost immediately to child, Like 1 sim Hr

I was trying to use a mod and it didnt work so i removed it but i still have the same issue

Try resetting your user files as described in the factory reset described in this post: http://answers.ea.com/t5/The-Sims-4/FAQ-Troubleshooting-Steps-amp-Known-Issues/m-p/3621199

You won't loose anything. Just make sure to not delete any files  and make a backup.

Try on a new game with nothing added back first (start new game). If it works, put back your save game and try again. If it still works, you can start putting stuff back.

• Options.ini (or just re-set all your settings manually)
• Tray Folder
• Screenshots/Videos/Custom music
• Rest of the save games (leave out slot_00000001.save which is the autosave)
• Custom content like clothing, hair, skins, make up ....
• Mods (one by one, making sure they all still work)

The rest does not need putting back, cause they are mostly cache files that recreate or log files that are not needed for the game.