You want to get into fuel planes if:
Money is no object
You don’t mind joining the AMA
You don’t mind joining a flying club and paying their dues
You don’t mind flying only at the club site
They don’t have a problem instructing your 12 yr old
You don’t mind cleaning fuel residue off your planes
You don’t mind the noise
You like large, powerful planes
You intend to stay with the hobby
You want to get into electric planes if:
Money is no object
You want to fly other places that are at least 3 or more miles away from a club field
You like clean, quite planes
You want to learn to fly on your own
I'm not sure what you mean by "toy planes" but most every outdoor plane I know of has over 29" wingspan.
Finally, read
THIS.