Can we create restricted user on phone running Android Lollipop? Seems that restricted users are not supported on mobile but only on tablet (mobile has only simple user no restricted user option).
Although it is not possible to create restricted accounts, you can achieve almost the same effect using a "normal" account.
This is the recipe:
- Create account, go into its properties and select whether you want it to be able to take/make phone-calls
- do NOT log in to your Google account during creation of that account
- after creating the account, deactivate any system-apps you do not want for that user and uncheck notifications for that app. Note that you need to uninstall updates to do so (you can update on your original owner account afterwards)
- log in to Google play using your owner account
- go to all apps
- "install" all wanted apps that are already on your mobile. This will NOT download that app again, but seems to simply create a link to that app, activating it within the mobile for the current user (similar to restricted accounts, but more complicated in the handling)
- do not forget to install any keys-apps for bought apps after the app
- Now enter the properties, accounts select your google account and delete it (just for that user)
The result will be a user without your google login but with some of your apps.
Using stock Android unfortunately the answer is No. It may be possible using a custom ROM but as the site you've linked to suggests, Restricted profiles are only supported on tablet devices.
On a phone you can configure whether the user can receive phone calls and SMS but this is the only option available.
Unfortunately I've not found any information on how to enable restriced profiles in a custom ROM either. As Android can be built from source I'm sure it will be possible but it does not appear to be something that many people have investigated yet. You don't mention what phone you are wanting to set this up on but it might be worth asking over at XDA in the relevant forum as they may be able to shed more light on it.
Updated answer for 2019 - it appears that Google Family Link let's you lock down an Android phone (including restricting apps).
It works by creating a "child" Google account which is locked down, and you simply have to log in with that child Google account.
Here's a guide I found with step by steps on how to set it up https://www.howtogeek.com/205301/how-to-use-android-5-lollipops-restricted-user-profiles-for-basic-parental-controls/