What you did as a child, your parents chose to do.
If you want something other than what you did yesterday, choose to do something different. You have to make it happen yourself.
You may not realize it but many, many ceremonies and events are not on the Monday holiday itself -- around here, even some battlefields, cemeteries and towns etc. have their ceremonies, wreath layings, parades etc. on the Saturday of Memorial Day weekend. It is possible that there were events all around you but not on Monday. Next year look for events on the Saturday before Memorial Day. We were at a Civil War battlefield all day yesterday, but their main ceremony was held on Saturday, not Monday. (We knew that and chose to go on Monday anyway.)
There surely were events in your area -- Florida has a LOT of retirees and therefore must have a lot of veterans, and you also have a lot of military bases down there. Did you search online? Look at sites for your local bases?
There are VA cemeteries all over the place if you seek one out and you can go there next year if you like. Or even better, help the living -- take your kids to volunteer at a retirement home for retired military members, maybe, if those opportunities are there.
The caring is out there but you do have to seek out the events and be aware that they may not fall on the Monday.