Our little guy is 7months old, he was castrated & microchipped last week & has had all his jabs. I've had cats for years but I just can't remember how we let them go outside. Our other cat is nearly 5 & I can't even remember how we introduced him to outside! 
We live on a reasonably busy road but our house is raised up & set back from the road. We also have neighbours with dogs on both sides.
So far we have let him out under supervision every day for the past 5 days (his op was last Monday so we gave him a couple of days to recover but he has been desperate to go out). We've let him have a wander around & a sniff (in the back garden mostly as it is away from the road although he seems very spooked by the cars) but only while we are with him for about 15-20mins at a time.
I'm feeling very nervous about letting him out on his own. He is essentially my 3 year old DDs cat, and I am so worried about her getting upset should something happen to him. (Silly & irrational I guess) We don't have a cat flap & all our cats have been kept in at night time as we live semi-rural & I worry about foxes/badgers. Our older cat goes in and out through the window or door.
While the weather is lovely I have been contemplating leaving the back door open & just seeing what happens. But I just don't know! 
What would you do?