The time you spend caring for one depends on the age most of the time, with a baby who needs to eat 3x a day for insects, get water dripped on its nose once a day or sprayed, handled often to get used to you, it may be a bit hard.
About each feeding for a single beardie takes about 20 minutes for me to do.
With one reptile it would take me maybe 5 minutes to get done with salad in the morning.
However I have about 5 reptiles that require bowls of food so it takes an hour for me each day because of the different foods they eat.
Just a little feeding amount according to ages.
All life stages eat 10-20 bugs a feeding.
1-4 months 3x a day.
4-12 months 2x a day.
12-20 months once a day.
20+ months twice a week at the least, every other day at the most.
With an older beardie it would be easier for you as they don't need as much time put into their feeding.
The lights need to stay on 14 hours a day at the very least, when you feed make sure its 2 hours before lights off.
Also beardies live for about 15-20 years so you have to be ready for a long commitment.
Beardies that are in the 1-4 month range generally eat 30-60 bugs a day, so depending on where you get your bugs if you have a younger beardie that can be very expensive. The starting
UVB light setup can be anywhere from 40-100 dollars depending on tank size, fixture size, light type, and brand.
And then that light has to be replaced every 6-12 months.
Enclosure size for baby less than 6 months - 20 gallon.
Enclosure size for 6-12 months - 40 or 50 gallon.
Enclosure size for 12+ months or right when you get it - 75 gallons (48"x18"x20") or 120 gallons (4x2x2.)
They need a lot of space as well and 75 gallons is pretty much the minimum tank size for them.