The small gift exemption and a bare trust work well together. Each parent and each grandparent can give the child €3,000 a year with no CAT and no effect on the child's lifetime threshold.
Two grandparents giving €3,000 each, every year from birth to 18, put €108,000 into the child's name before any growth. Paid into a regular investment inside a bare trust, that money works for the child for the long term.