How bout an 18' with a 60hp Mercury???

[fdheld34]

I have a chance to buy a used 60hp Mercury from a local neighbor...I wanted to mount it on my boat and try out first..but neighbor said nope! Again it would be for a 1979 18'. I plan on using boat only inland and occassional offshore. Also, bought for my son to use when he gets older.
Would this be a waste of my money and not enough hp?
Should I save the money and put towards higher hp down the road when funds allow?
Any safety issues with lack of enough hp on the 18'?
Thanks in advance for any help!!
-Fred