My DS3 is 2.4 and can escape from anywhere.He is big and tall for his age and this is causing us real problems. He has amongst other things learnt to beat all the stairgates in the house by either charging them ( 2 broken that way so far! ) or climbing over. Since he has learnt to scale the one on his bedroom he keeps coming in to my bedroom at night. at the moment i live in a bungalow but moving in the new year to a house.
Also can escape from the harness of his car seat in seconds and have has to buy an extra clip for it. Forgot to do it up recently when not concentrating and he wiggled out and opened the car door as i was driving. Because of his weight ( now 19.5kg ) should be in next stage of car seat but I dare not change to one that is just fastened with a seat belt accross him.
Does this sound familiar ? Have to other ds' who were lively in their time ( they are now teenagers so definately not lively any more ) but not to this extant.