custom content is legal for the sims 3 and any other game,unless it breaks copyright laws
You can find custom content on various third-party websites, or by downloading pre-made Sims with custom content from the Sims 3 Exchange.
Happy Simming! <3 FSC
meez.com sims 3 poptropica
If I understand correctly what you mean, yes
Here are some custom content sites.The Sims 2 ExchangeThe Sims 3 ExchangeModTheSimsThe Sims ResourceGarden of ShadowsSimbologyMore Awesome Than YouInsimenatorLianaSims2AnnaMariaSims2DecorgalThe Sim SupplyxSIMS.de (mature content)There are plenty more sites than this. If you want more just google "sims 3 custom content".
there's this little paint brush...
In the Sims 3 base game, there are only two worlds. You can download Riverview from the Sims 3 site, but you must have a account. However with most new Expansion Packs a new world is released which you can play in. With the additional option of the Exchange, where you can get worlds created by other players using Create a World, which you can also download from the Sims 3 website, there are almost infinite worlds for Sims 3, and certainly more than almost every single computer in the world can handle.
you press the clothing
You can have one, but custom content is required.
I've not seen escalators for TS3. I would try some of the custom content sites and request that one be made. Mod The Sims is a good place to start...they have good creators who are willing to do requests.
This is how to add custom music if you play sims 3 on a pc: Go to: My Computer>(the drive you installed Sims to)>Program Files>Electronic Arts> The Sims 3>GameData>Shared>NonPackaged>CustomMusic and drop files into this folder. They then should play on your sims' stereo, under custom music :)