Also be careful with how he stores his bitcoin.

He bought it through Binance P2P trading and I hope he did not and won't store his bitcoin on Binance.

Reminder: do not keep your money in online accounts

Choose wallets
Chose your wallet.
[LIST] Open source hardware wallets.
Recommended wallets.

As a newbie, I advise OP to use Electrum wallet.
[GUIDE] How to Safely Download and Verify Electrum.
The paranoid user's security guide for using Electrum safely.

With Electrum wallet, multisig and cold storage wallets are available.
Creating a multisig wallet.
Creating a cold storage wallet.