These days, networking has been made easier with social media, where you can easily make a referral, and people on your contact list take it seriously based on the level of trust and reliability that they have for you.
If you make a referral and people who follow it are satisfied, their level of confidence and trust in you increases, and they value you more.
There is a need to be careful about the referrals you make, because some referrals are capable of ruining your image and the trust that people will have in you.
I have seen people question why bitcoin is still the first choice that is referred to new people in cryptocurrency who want to invest, and one reason for that is that bitcoin can be relied on when compared to other cryptocurrencies, especially the new ones, and you don't want to gamble with your referrals.
I know we always have to advise people to do their own research for any referral given to them, but still, you do not want to give someone a referral on some altcoin just for them to do their own research and find out that they just dodged a bullet.
Do not just refer to any cryptocurrency; refer to bitcoin when introducing a newbie to cryptocurrency.
I will go even further than this, teaching general principles about investing is acceptable, but the moment you give a specific advice about which coin is a good investment you are taking a significant risk, as even if the advice to invest in bitcoin is a good one, there are many people that have lost a lot of money with it anyway, and if you were the one giving the advice, you can be sure you are going to be blamed for that loss, and if the amount lost was high, there is even a chance you could be sued.