We started our daughter on a strider at about 2.5yrs. We took it with us whenever we went to the local parks, camping, mellow hikes, etc. She wasn't all that interested in riding it consistently (10 - 15min bursts) but it was there for her to use, no pressure. What really made things take off was her seeing other kids riding at the park and then ultimately, going to a local bike park with a kid-size pump track and small wooden features (teeter-totters, ramps, rollers, not BC-style hucks!). That was a total game changer and now she's obessed.
Small Pump tracks are great for scoot-type bikes since it will get your tyke learning to ride their bike up and down the small rollers and get them used to gliding.