Never force your friend to invest in Bitcoin, you should only explain the benefits of Bitcoin to your friend, the risks and benefits of Bitcoin. Then let your friend decide independently, moreover, to invest in Bitcoin, you must first understand the basics of Bitcoin well. You tell your friend the basics of Bitcoin, like how to hold it, when it goes down and when it goes up, and what levels it might go to in the future. Let the decision be made her independently.
If you force your friend to spend such money in BTC without having the knowledge of the investment, and something bad happen to the BTC, you will go to jail, if the person sue you to court in my country because the evidence the judge need to give justice to the case is very clear.
Impacting your friend about BTC investment is a good idea, it will make him to have the knowledge to introduce it to his own company and he will not hodl you responsible for anything that will going to happen in the future.
Once someone is very good in hodling BTC for a long period of time, before you can sell to make a good profit show that the person have achieved the knowledge of BTC, and it will be favourable if the person can apply long hodling in the BTC which is the best way to help the company to accumulate profits.