Ideally you should look for a reach where your elbows bend slightly when your hands are on the hoods without your spine flexing and bending to reach the bars for a good road bike fit.
Should you touch the floor on a road bike.
The few last answers by cyclists are right.
Depends on what sort of bike you re riding.
Give a quick push with the ground foot and then use the pedal foot to hoist yourself back up to the saddle.
Road bikes and trail bikes xc am put the rider into a very efficent riding position but the rider cannot touch the ground with the soles.
Then when you re ready to go again put one foot on a pedal and the other on the ground.
Dutch style town bikes cargo bikes etc you should be able to touch the ground.
If you re doing bmx tricks that s probably about right.
If it s a road bike no you shouldn t be able to touch the ground.
You get off your saddle and stand over the top bar of the.
You should not be able to touch the ground when stopped on a bike while sitting on the saddle.
If your feet are flat on the ground the saddle is too low and needs raising and if your toes are just touching the ground right on your tip toes either your bike is too big for you or the saddle is too high.
When you sit on the saddle both feet should reach the floor and the balls of your feet should be touching the ground.
He might have given that advice based on this being your first road bike and that you needed to just go out and ride for a little while to get used to it.
Even worse road bikes and trailsbikes are usualy ridden with clip in pedals.
Most hybrids you are a no.
As long as he got you set up w the correct saddle height and close on the reach drop you should be fine.
Yes bring your butt off of the saddle and straddle the top tube of the bike when you stop.
But as noted previously your fit needs will change as your fitness and strength grows.
Same as far as i know goes for most mountain bikes except downhillers.
For pretty much everything else the seat is way too low.