Of course, there are the people you smile at, the mums you stand and have a good old natter with and then the ones you avoid - big time!
Here are 12 mums we are sure you'll find at the school gates every morning...
1. The wannabe WAG mum
Sunglasses? Check. Heels? Check. Lippy? Check! Come on, who really has time to slap tons of make-up on before dropping the kids at school?
2. The 'roll out of bed and hope for the best' mum
Tired Tuesday? More like tired all week long. Don't worry, you're not the only one!
3. The super mum
She's the mum every mum wants to be. Super organised, ready for action and on time. It's a dream we all have on a regular basis but it's just never going to happen...
4. The make-up free rebel mum
She's not wearing any make-up - so scandalous! There's always one who just doesn't care what she looks like, she's there to drop off her kids and that's that. We wish we were that brave!
5. The pushchair mum
Don't mess with the pushchair mum - you get in her way and she'll run you over. She's on a mission to get to those school gates quicker than you can.
6. The 'how can you be so happy and lively this time in the morning' mum
There's always the mum at the school gates who is just full of energy - how is that even possible?
7. The 4x4 mum
Don't get in the way of the 4 x 4 mum, she'll run you down with her overpacked car. Taking up most of the parking spaces outside the school, she's in the wrong but no one dares to mess with her.
8. The 'why did I have so many kids?' mum
One... Two.. Five... Seven... Wait, am I missing one? Spare a thought for those mums with the busload of kids - how does she do it?
9. The gossip mum
She doesn't want to hear about the latest cake that you baked or how your kid passed his maths test, she wants to know the juicy, juicy gossip, so spill!
10. The loud and proud mum
Argh! Just, argh! It's too early for all that loud noise and shouting at the kids. Calm down love, it's only 8.30am.
11. The always late mum
There's always one that's later than late can be. It's a race to the gates whilst juggling kids, school bags and pushchairs.
12. The awkward dad
Yes, not a mum but he's a constant at the school gate. He's surely talked to women before but the sight of a gaggle of women, all in one place, brings out the little boy in him. That's him, hiding behind the wheel of his car until the gates open.