The risk is present on the way to the kitchen)
In our world, you do not need to relax and keep yourself in awareness and control your external transitions ! And as for specifying the phone number or not, so the phone number has now become a mandatory factor wherever you go, with whom you would not contact, even in a restaurant booking a table, they ask for your phone number, so there is only control and be careful! And if you talk about the risks and what is better and safer, I do not know this on earth, even in a children's sandbox there is a risk of being blind!
I only implied that there are risks and benefits at the same time. Take them into accounts before decisions are made.
[BEWARE] Sim Port Attack. It is same as airdrops or bounties that require KYC. If one person accept risks and assessing that benefits outweigh risks, let's go with KYC to get a few money from airdrops or bounties. It is personal decisions and based on personal risk-management style. We can not tell the others doing exactly what we do.