i'm 32 and have only just recently run an excavator to do some drainage work around my property, it was a rented kubota mini, if i remember it was a 1ton class machine i think the u-8000? anyway it had the movable tracks to fit through gates and only dug to about 6ft deep, what a dream to use compared to our old case 530 back hoe, which was a step up from the 1st back hoe we owned and i learned on at about 8yrs old, that was a truck mounted unit on an old reo cab and chassis.