1. Forget the term "playdate". Don't schedule your kids' time to play with other children. I know it sounds strange, but adults used to have adult lives and people would just go visit each other. Their kids would play together while the adults did their thing.
2. Don't post pictures of your kid all the time on social media. No one really cares. Sorry. Send those pictures to your parents or friends directly. Better yet, go over to visit them and show them pictures in person. If you can, drop social media as much as you can stand, and just enjoy the fact that you love your child as much as every parent without turning parenting into social signalling and narcissistic indulgence.
3. Remember that your kids will leave you. They will go away to preschool, grade school, maybe college. And then one day, they will leave for the last time to set out on their own. Yes, you need to protect them, but if you are fearful and see the world as ugly, your kids will sense that growing up and most likely feel the same way. Do you want to send them out to the wide world with a viewpoint that the world is a scary place? Is the world a scary place? Why did the world turn ugly and scary when you had a child?
These are just my opinions, and there is no wrong way to do it. There's all sorts of ways of living. I just hope you find something that gives you some faith in your ability to raise a child that will turn out just fine. Because he or she will.
For many people, social media is how you send things to parents and friends. It's more straightforward than managing an email list, and needn't be any less real a connection.
I don't deny that ubiquitous social media is deforming our interactions, but I think a lot of people don't understand why Facebook et al got so popular in the first place. It's not just email for idiots. It's a tremendously useful tool for maintaining connections with a large and changing group.
The connection via Facebook is so trivial and transient but it is better than no connection to people I'd have no contact with otherwise.
The people I email photos too will probably look at them a few times and may want to print them and will send an email response. Via FB it's all seen and then forgotten in 30s
For me to send a birthday card to my friends I have a reminder that goes off a week before their birthday so that I find the time to go out get a relevant card. Then writing something of purpose inside the card and sending it with enough time to get there. So it's a week's worth of remembering their birthday vs the 30s that occurs in FB before reading all the other news.
So not worthless, but certainly worth less, to almost zero.
But I was recently at a wedding, and was prompted to post a few photos up (more to share the photos with the bride/groom in a way that can also be seen by their friends too). It surprised me the number of messages I got saying how people loved seeing pictures of the kids and how they'd grown etc etc.
I don't have time to keep up with a lot of these old friends (many live far away) so I count this as a positive interaction on facebook.