As far as the whole giving out our number to strangers...no way. I don't do that either. Got burned once with a stalking caller from someone who never even showed on the date so, I won't do that again.
I understand how you feel about that, but if you and I were talking, this is where I would tell you that I do not meet with anyone that does not provide me a phone number. Period. The only no shows I've ever had were women that felt weird about giving their number.
In this day and age, it's more important to protect your private email than the phone number. If I get a stalker. I press a button on my phone. Blocked.