Was I being mean?

[Lazydaisy55]

My two offspring are 20 and 13. Last night we discussed going to the beach. I usually do all the organising/picnic preparation.

It was agreed that we would all get up at 8, I had an appointment at 9. In the meantime they were to make sandwiches and get their beach stuff ready.

I was the only one who got up at 8! I decided to see how long it would take them to surface. They wandered downstairs at 10, expecting me to have done everything. Beach trip is now off because of the lack of effort from them.

Was I being mean? I feel bad now even though I think it's a fair decision.

Thank you Coconuts. I can take or leave the beach, I thought it was time for DCs to have a reality check. I have had years organising and motivating.

Imperial, we discussed times and plans last night, they both agreed to plans, they both have alarm clocks and mobiles. There has to be a point when I stop doing everything, obviously I will do more organising with the 13 year old.

the 13 year old I get.....but a 20 year old is an adult fgs!!!

I think you are totally right to try to get them to see that they should take some initiative here, especially as it was planned the evening before and they understood they needed to get up.

The OP was going to her appointment while the others were to be getting up and organised.
Of course you're not BU.
In a home people should be treated fairly and leaving one person to do everything to make a nice day for everybody, including getting other people up is not fair.
If you want to get the most from a trip to the beach on one of the few occassions of the year that it's possible to go and it's a 90min drive and you won't get parked if you go late then you have to be up in good time and preferably be grateful that someone's thought about it the day before. Some things are only possible if you put a bit of effort in, summer holidays or not. I'd be disappointed if they were my DC too.
Try not to give it a second thought and enjoy the lovely weather.

Lazydaisy you and your family sound like me and mine. I'd probably do the same as you then dither and feel bad at some point later in the day.
You don't have to justify your actions to your DC or anyone on this thread. Well done for carrying out what you said and the best of luck for a lovely day trip one day soon :)