My 60 year old neighbor asked me how to buy bitcoin. Need advice

I have been wearing a bitcoin hat for years and my neighbor saw it and finally asked me how they can get into bitcoin. They are worried about the currencies collapsing.

I only know Bitcoin core software and Bitcoin Wallet by bitcoin wallet developers mobile app.

They trust me and want to dump at least 1k to start. I'm sure they will dump more and more into it.

What is the best advice to give them? Should i tell them to setup an account on coinbase to purchase bitcoin.

I dont want them to leave it on coinbase. Should i teach them bitcoin core software. How to transfer it there after buying it and then exporting their private keys?

The easiest would be for them to leave it on coinbase but i dont trust anyone leaving bitcoin on coinbase or any exchange

Most old people don't understand computers and bitcoin core is complicated for non tech savvy people. But i am able to help them and show them.

What would you do if old people asking you to come to their home and teach them bitcoin.

What can i do? they said they can pay me for my time.

I only know bitcoin core and don't trust most other wallets. I dont know hardware wallets either.