Hi gal261,
Family Sharing is an option, but keep in mind you can only have 5 users set up in a Family Sharing group so it would depend on how you want to set it up. This link has some great details on Family Sharing: Set up Family Sharing - Apple Support
As another possibility, you could turn restrictions on and turn off the "Installing Apps" switch using the steps below: Use parental controls on your child's iPhone, iPad, and iPod touch - Apple Support
"Prevent iTunes & App Store purchases
You can also prevent your child from being able to install or delete apps, make in-app purchases, and more. To prevent iTunes & App Store purchases or downloads:
- Go to Settings and tap Screen Time.
- Tap Content & Privacy Restrictions. If asked, enter your passcode.
- Tap iTunes & App Store Purchases.
- Choose a setting and set to Don't Allow.
You can also change your password settings for additional purchases from the iTunes & App Store or Book Store. Follow steps 1-3, then choose Always Require or Don't Require."
We hope this is helpful. Take care.
[Edited by Moderator]